Youngsters Stephen McManus and Shaun Maloney set up a very comfortable win for Celtic with first-half goals against SPL strugglers Livingston.
Shaun Maloney and Mo Camara celebrate at Almondvale
McManus headed in a simple goal from a corner and Maloney stroked in a neat finish after a great flowing move.
Maciej Zurawski then headed in a great delivery from full-back Mohammed Camara soon after the interval.
Chris Sutton powered in an impressive strike and Craig Beattie tapped in from close range to complete the rout.
Manager Gordon Strachan sprang a surprise by leaving John Hartson on the bench, but Celtic did not miss their leading scorer for the season.
Celtic dominated proceedings right from the off and the lively Shunsuke Nakamura was first to threaten the home goal.
The Japanese playmaker fired in a fierce 25-yard shot which Livi 'keeper Roddy McKenzie managed to beat away.
McKenzie then had to use an outstretched foot to stop a low shot from Celtic striker Craig Beattie.
And full-back Paul Telfer warmed McKenzie's hands with an impressive shot from distance.
Nakamura and Stilian Petrov then saw powerful strikes flash just wide of the target as Celtic continued to overrun the home side.
Celtic forced their fifth corner of the match after 36 minutes and Maloney's delivery was flicked on by Sutton for McManus to head home from close range.
On the stroke of half-time, a marvellous one-touch move set up Maloney for the game's second goal.
Petrov provided the final pass and the youngster took a touch before calmly steering the ball into the bottom corner of the net.
Celtic continued to impress after the break and after 51 minutes Camara provided an excellent cross for Zurawski to send a flashing header past the helpless McKenzie.
Sutton drilled in the fourth goal on 62 minutes when a free-kick from Maloney broke to him off the defensive wall and the big Englishman found the top corner from the edge of the penalty area.
Celtic were knocking the ball around with ease and Livingston were run ragged when the visitors added a fifth goal after 72 minutes.
A superb pass from Maloney released Camara and the defender's low cross was parried by McKenzie into the path of Beattie and the striker tapped the ball into an unguarded net.
Livingston: McKenzie, Mackay, Strong, Dorado, Dair, Brittain, Walker (Vincze 78), Adams, Pereira (Tierney 55), Dalglish (Snodgrass 67), Graham Barrett. Subs Not Used: Roy, Pinxten, Scott, McPake.
Celtic: Boruc, Telfer, Camara, Balde, McManus, Sutton, Nakamura, Maloney, Zurawski (Hartson 81), Beattie (Agathe 85), Petrov. Subs Not Used: Marshall, Virgo, Pearson, McGeady, Wallace.
Goals: McManus 36, Maloney 45, Zurawski 51, Sutton 62, Beattie 72. Att: 9,115
Ref: M McCurry