A comedy goal and a controversial effort helped Arsenal into the Carling Cup last eight at Newcastle's expense.
An attempted nodded clearance from Ryan Taylor hit his own keeper Tim Krul before going into the Magpies net to give Arsenal the lead.
Theo Walcott raced through and dinked in a second after Nicklas Bendtner appeared to block a Magpies defender as he came back from an offside position.
Bendtner then curled in a shot and Walcott slotted in Arsenal's fourth.
A weakened Newcastle showed plenty of commitment and valiantly tried to get back into the game at 2-0 down but the visitors punished them with some ruthless counter-attacking play.
Speculation unhelpful - Hughton
Ultimately, it was a convincing win for Arsenal manager Arsene Wenger's side, which had an unusually strong look to it compared to the line-ups the Frenchman has chosen to field in previous Carling Cup campaigns.
And, while a five-year trophy absence might have had something to do with Wenger taking the competition more seriously, the need for some of his more renowned stars to get some first-team football also played a part.
Walcott, Bendtner, Tomas Rosicky, Denilson and Laurent Koscielny have all recently returned from injury and they helped the visitors make a blistering start against a Newcastle line-up chosen with Sunday's Tyne-Wear derby against Sunderland in mind.
Magpies centre-back Mike Williamson was robbed of the ball by Rosicky in the opening minute and the Arsenal playmaker slid a pass through to Carlos Vela, whose strike was saved by the out-stretched leg of Krul.
From the resultant corner, Williamson had to twice block Bendtner shots at the far post before Krul smartly saved the Dane's third attempt.
Youngster Haris Vuckic sent an angled shot into the side-netting at the other end before the visitors resumed their assault on the home goal, with Walcott's pace and movement causing Newcastle all sorts of problems.
Bendtner dragged an angled strike wide before the Tyneside outfit almost punished Wenger's side for not making more of their chances.
Danny Guthrie played a ball over the top of the Gunners defence to release Nile Ranger and, after he stumbled past the challenge of onrushing keeper Wojciech Szczesny, his shot was blocked by Koscielny.
Almost immediately, Alan Smith launched a thunderous 30-yard strike which was brilliantly tipped on to the crossbar by Szczesny.
Newcastle started to contain their rivals as they worked their way into the game before they went behind on the stroke of half-time.
Krul was distracted by Craig Eastmond, who might have got a faint touch, as he flapped at a Bendtner header and, when Taylor tried to nod clear off the goal-line, all he managed to do was hit the ball against his keeper as it came off him and went into the home goal.
James Perch could have levelled matters had he not put a free header over from 10 yards prior to the main moment of controversy in the game.
Bendtner was trotting back from an offside position when Walcott was released on goal by Johan Djourou's clearing header, but the Dane ended up colliding with Williamson as the centre-back tried to intercept the ball, leaving Walcott to dink over Krul to add to Arsenal's lead.
Newcastle then threw on Andy Carroll and Jonas Gutierrez to try to help engineer a comeback and, while they carried a danger and gave Arsenal a couple of scares, they failed to convert their threat into goals.
The ability to play on the counter-attack played into Arsenal's hands and substitute Cesc Fabregas passed for Bendtner to cut inside and find the top corner with a precise strike before Walcott again raced clear and sidefooted past Krul for his sixth goal of the season.
Arsenal join Aston Villa, Birmingham, Ipswich, Manchester United, West Brom, West Ham and Wigan in the draw for the quarter-finals on Saturday.
90:00+3:18 The referee blows his whistle to end the game.
90:00+2:45 Andrew Carroll takes a shot. Wojciech Szczesny makes a save. Inswinging corner taken from the left by-line by Danny Guthrie,
Wojciech Szczesny makes a save.
90:00+1:11 Free kick awarded for a foul by Joey Barton on Francesc Fabregas. Direct free kick taken by Laurent Koscielny.
90:00+1:11 Booking Booking for Joey Barton for unsporting behaviour.
90:00+0:34 Tomas Rosicky produces a right-footed shot from the edge of the box and misses to the left of the target.
89:00 Joey Barton challenges Craig Eastmond unfairly and gives away a free kick. Francesc Fabregas takes the direct free kick.
88:33 Centre by Haris Vuckic, Wojciech Szczesny makes a save.
87:42 Laurent Koscielny provided the assist for the goal.
87:42 GOAL - Theo Walcott:Newcastle 0 - 4 Arsenal Theo Walcott gets on the score sheet with a goal from inside the box to the bottom left corner of the goal. Newcastle 0-4
87:17 Ryan Taylor sends in a cross, save made by Wojciech Szczesny.
86:41 Andrew Carroll produces a left-footed shot from the edge of the area and misses to the left of the goal.
84:50 Foul by Craig Eastmond on Joey Barton, free kick awarded. Ryan Taylor shoots direct from the free kick, Wojciech Szczesny
makes a brilliant save. Corner from the right by-line taken by Ryan Taylor, clearance made by Laurent Koscielny.
84:19 Ryan Taylor takes the outswinging corner, Francesc Fabregas makes a clearance.
83:34 Tomas Rosicky concedes a free kick for a foul on Danny Guthrie. The ball is sent over by Ryan Taylor, Header from deep inside
the area by Andrew Carroll goes over the bar.
83:34 Substitution Jay Emmanuel-Thomas comes on in place of Nicklas Bendtner.
82:02 Assist by Francesc Fabregas.
82:02 GOAL - Nicklas Bendtner:Newcastle 0 - 3 Arsenal Nicklas Bendtner scores a goal from inside the penalty box to the top right corner of the goal. Newcastle 0-3 Arsenal.
80:57 Centre by Jonas Gutierrez, blocked by Bacary Sagna. Inswinging corner taken by Danny Guthrie from the left by-line, Ryan Taylor
takes a shot. Save by Wojciech Szczesny.
79:39 Centre by Jonas Gutierrez, clearance made by Johan Djourou. Corner from left by-line taken by Jonas Gutierrez.
75:04 Jonas Gutierrez fouled by Bacary Sagna, the ref awards a free kick. Danny Guthrie takes the free kick.
75:04 Booking Caution for Bacary Sagna.
73:31 The referee blows for offside against Theo Walcott. Indirect free kick taken by Tim Krul.
71:33 Centre by Jonas Gutierrez, clearance by Francesc Fabregas.
70:17 Substitution Joey Barton is brought on as a substitute for Alan Smith.
69:35 Substitution Francesc Fabregas joins the action as a substitute, replacing Carlos Alberto Vela.
69:04 Shot from 20 yards from Ryan Taylor. Save by Wojciech Szczesny.
68:56 The ball is delivered by Ryan Taylor, clearance made by Laurent Koscielny.
68:36 Foul by Bacary Sagna on Jonas Gutierrez, free kick awarded. Free kick taken by Tamas Kadar.
68:04 Andrew Carroll produces a cross.
67:52 A cross is delivered by Danny Guthrie.
65:53 Jonas Gutierrez delivers the ball, clearance made by Laurent Koscielny. Short corner worked by Jonas Gutierrez. Danny Guthrie
takes the inswinging corner, Header from close range by Nile Ranger misses to the right of the target.
64:14 Jonas Gutierrez takes a shot. Blocked by Bacary Sagna. Andrew Carroll has an effort at goal from just inside the box that
misses to the right of the goal.
63:31 The ball is crossed by Carlos Alberto Vela, James Perch makes a clearance.
62:38 Neves Denilson produces a cross, clearance made by James Perch.
61:20 Alan Smith challenges Carlos Alberto Vela unfairly and gives away a free kick. Theo Walcott has a direct shot on goal from
the free kick, Alan Smith gets a block in. Tomas Rosicky takes a inswinging corner from the left by-line played to the near
60:21 Tomas Rosicky delivers the ball.
Correction - 55:56 Substitution Andrew Carroll joins the action as a substitute, replacing Peter Lovenkrands.
Correction - 55:56 Foul by Johan Djourou on Nile Ranger, free kick awarded.
Correction - 55:56 Substitution (Newcastle) makes a substitution, with Jonas Gutierrez coming on for Wayne Routledge.
55:56 Strike on goal comes in from Ryan Taylor from the free kick.
55:56 Substitution Andrew Carroll on for Peter Lovenkrands.
55:56 Johan Djourou gives away a for an unfair challenge on Nile Ranger.
55:56 Substitution (Newcastle) makes a substitution, with Jonas Gutierrez coming on for Wayne Routledge.
52:52 Assist by Johan Djourou.
52:52 GOAL - Theo Walcott:Newcastle 0 - 2 Arsenal Theo Walcott gets on the score sheet with a goal from inside the box to the bottom right corner of the goal. Newcastle 0-2
52:03 The ball is delivered by Haris Vuckic, save by Wojciech Szczesny.
50:10 The ball is sent over by Danny Guthrie, clearance by Johan Djourou.
49:12 Inswinging corner taken right-footed by Danny Guthrie from the left by-line, Header on goal by James Perch from inside the
box goes harmlessly over the target.
48:13 The ball is delivered by Bacary Sagna, Mike Williamson manages to make a clearance.
47:58 Tamas Kadar challenges Theo Walcott unfairly and gives away a free kick. Direct free kick taken by Theo Walcott.
45:50 Unfair challenge on Theo Walcott by Alan Smith results in a free kick. Free kick crossed right-footed by Tomas Rosicky, Mike
Williamson manages to make a clearance.
45:50 Booking Alan Smith goes into the referee's book for unsporting behaviour.
45:30 The official flags Peter Lovenkrands offside. Bacary Sagna takes the indirect free kick.
45:01 The second half has started.
45:00+2:28 The referee blows for half time.
45:00+2:00 Nicklas Bendtner takes a shot. Save made by Tim Krul.
45:00+2:00 GOAL - Tim Krul:Newcastle 0 - 1 Arsenal Headed own goal by Tim Krul. Newcastle 0-1 Arsenal.
45:00+0:51 Carlos Alberto Vela sends in a cross, blocked by Alan Smith. Corner taken right-footed by Theo Walcott from the left by-line,
clearance by Nile Ranger.
43:28 The ball is delivered by Bacary Sagna.
42:40 The ball is crossed by Wayne Routledge, Wojciech Szczesny makes a save.
41:52 Nicklas Bendtner has an effort at goal. Save by Tim Krul.
40:24 A cross is delivered by Carlos Alberto Vela, Mike Williamson manages to make a clearance. Corner taken left-footed by Carlos
Alberto Vela to the near post, Tamas Kadar makes a clearance.
39:22 Emmanuel Eboue has an effort at goal from close range which goes wide left of the goal.
37:01 Nicklas Bendtner has an effort at goal. Save made by Tim Krul.
36:20 Peter Lovenkrands is ruled offside. Wojciech Szczesny restarts play with the free kick.
34:41 A cross is delivered by Tomas Rosicky, Alan Smith makes a clearance.
34:06 Corner taken by Carlos Alberto Vela from the right by-line.
33:22 The ball is swung over by Wayne Routledge, clearance made by Laurent Koscielny. Corner taken right-footed by Danny Guthrie
from the right by-line, clearance made by Nicklas Bendtner.
30:51 Foul by Tomas Rosicky on Danny Guthrie, free kick awarded. Ryan Taylor takes the direct free kick.
30:22 Carlos Alberto Vela produces a cross, Ryan Taylor manages to make a clearance.
29:27 The ball is crossed by Bacary Sagna.
28:17 Unfair challenge on Bacary Sagna by Haris Vuckic results in a free kick. Bacary Sagna takes the direct free kick.
26:45 Alan Smith gives away a free kick for an unfair challenge on Neves Denilson. Laurent Koscielny takes the free kick.
24:31 Free kick awarded for an unfair challenge on Emmanuel Eboue by Wayne Routledge. Emmanuel Eboue takes the free kick.
22:58 The ball is crossed by Theo Walcott, blocked by James Perch. Corner taken by Carlos Alberto Vela.
21:19 Emmanuel Eboue fouled by Wayne Routledge, the ref awards a free kick. Wojciech Szczesny restarts play with the free kick.
18:30 Substitution Bacary Sagna on for Kieran Gibbs.
15:07 Centre by Neves Denilson.
14:52 Carlos Alberto Vela crosses the ball, save by Tim Krul.
13:36 Alan Smith takes a shot from 25 yards.
13:27 Nile Ranger takes a shot. Laurent Koscielny gets a block in.
12:10 Carlos Alberto Vela handles the ball and concedes a free kick. Tim Krul restarts play with the free kick.
8:21 Shot from 20 yards by Haris Vuckic. Blocked by Neves Denilson.
7:05 Craig Eastmond takes a shot from 20 yards. Ryan Taylor gets a block in. Tomas Rosicky takes a inswinging corner from the left
by-line played to the near post.
6:04 A cross is delivered by Emmanuel Eboue.
5:43 Alan Smith gives away a free kick for an unfair challenge on Theo Walcott. Direct free kick taken by Tomas Rosicky.
4:49 Nicklas Bendtner has an effort at goal from deep inside the area missing to the right of the goal.
4:21 The ball is swung over by Theo Walcott, clearance made by Mike Williamson.
3:34 Emmanuel Eboue takes a shot. Save made by Tim Krul.
1:37 Haris Vuckic has an effort at goal from deep inside the area missing to the left of the goal.
0:53 Nicklas Bendtner produces a drilled right-footed shot from 6 yards. Save made by Tim Krul.
0:32 Inswinging corner taken right-footed by Theo Walcott from the left by-line.
0:20 Shot by Carlos Alberto Vela from 12 yards. Save by Tim Krul.
0:00 The referee gets the game started.
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