U2 London Tour: Noel Gallagher Joins The Band Onstage As They Performed A Beatles Classic!

U2 rocked out on stage at London city's O2 Arena; bringing a surprise treat for the crowd.

"Will you welcome to the stage the high flying bird himself Noel Gallagher," announced Bono to concert goers, reported by Consequence of Sound.

The Irish Natives call Gallagher one of their heroes.  

"God bless that band because they do take that side of it very seriously," Gallagher told Rolling Stone in an interview. "I've been a fan since hearing New Year's Day in 1983 and I've seen them loads of time."  

Along with The Edge, Larry Mullen and Adam Clayton, They performed the four piece hit I Still Haven't Found What I'm Looking For and segued to The Beatles classic All You Need Is Love. 

Noel Gallagher had a working-class upbringing in Manchester and stunned fans when he took the tube going to London's O2 Arena. He still had time to pose for a photo with some of his eagle-eyed fans, reveals Daily Mail.

Asked if he ever gets hassled by fans using public transport, "A Scottish couple sat opposite me and one of them said, 'Excuse me mate, which stop is it for Buckingham Palace?'" said the rockstar. "That was it. They were asking me for directions. I've never been minded on the tube," according to NME. 

"Here's @NoelGallagher travelling to London's O2 ahead of his performance with @U2 last night #legend." captioned a photo posted by NME journalist Damian Jones on Twitter. 

High Flying Birds is the name of the band that currently plays on stage with Gallagher; the guitarist presently has a solo career.

Noel Gallagher is one of the main acts at Lollapalooza in 2016. 

U2 is in the middle of the European Leg of their "Innocence + Experience Tour." Upcoming shows are already are sold out.

The band's tour ends in Nov. 3, but they plan  to resume in the New Year; with a possible album out allegedly in Spring.