By Ian Youngs
Music reporter, BBC News
The tour marks the release of seventh studio album, Dig Out Your Soul
Oasis star Noel Gallagher, who was attacked on stage a month ago, has shaken off his injuries to launch the band's UK tour in Liverpool.
Gallagher suffered three broken and dislodged ribs when a fan pushed him over at a festival in Canada.
A string of gigs had to be cancelled, but he showed no obvious signs of his injuries at the Liverpool Echo Arena.
The gig came as the band found out that their new album Dig Out Your Soul sold 90,000 copies in the UK in one day.
That makes it the fastest-selling album of the year so far, according to Music Week magazine.
At the Liverpool gig, Noel did not mention the incident in September when a fan ran across the stage and pushed him onto his monitor speakers.
He did not appear to be having any trouble, but he did stay on the sidelines for much of the show, leaving brother Liam to swagger and showboat to the raucous crowd, and to sing all but four of the 21 songs.
"I thought he was a bit quiet tonight," said one fan, Dave Booth, of Noel. "I didn't think he sung as much as I thought he would, but he was top class. Can't have no complaints."
The attack was mentioned by boxer Ricky Hatton, who introduced the band.
"Anyone jumps up tonight, they'll have me to deal with," he told the crowd.
'The people's favourites'
The show mixed classic anthems like Wonderwall, Champagne Supernova and Cigarettes and Alcohol with material from the new album.
Judging by the reaction of the 10,000-strong audience, Oasis still have a strong claim to the title of the biggest band in Britain.
"Oasis are back," said Craig Coats, 25, from Durham.
"Oasis have always been the best band and they always will be, they've come up with some new material, they've done a concert and they've pulled it off.
"Oasis will always be our favourites - the people's favourites."
"No matter what anyone says, the new album rocks," said David Jones from Liverpool. "The place was bouncing."
Another fan, Steve Woosey, 40, from Runcorn, described the show as "absolutely fantastic."
"Oasis are just the best - other than Pink Floyd, they're best in the world. It was murder to get tickets, but we got them. Brilliant," he said.
Tickets for their 18 UK dates - their first British shows for 18 months - sold out in less than an hour when they went on sale in August.