The lyric "we know they won't win" was an appropriate sentiment as Manchester recovers from the attack just 13 days ago - and a day after terrorism again struck London.
The benefit concert, held for the victims of the bombing at Ariana Grande's Manchester show on May 22nd, featured performances from Coldplay, the Black Eyed Peas and Justin Bieber and raised £2.35m and counting. The baby then tried to sing along with the pop star herself. Grande, her voice exhausted from the long evening, paused with tears in her eyes before the song's coda as the crowd, made up of people the same age as those who attended her concert in the area less than two weeks earlier, watched on - no doubt exhausted, but no less passionate for it.
Gallagher also performed the band's Rock "n" Roll Star and his own single, Wall Of Glass, before telling the 50,000-strong crowd at the Old Trafford cricket ground that Live Forever was for "the lovely people killed and injured in the Manchester terror attack".
Piers Morgan, who previously criticised the star in the wake of the attack, tweeted: I misjudged you, @ArianaGrande & I apologise. "Everybody say, 'We honor you, and we love you'".
According to Billboard, Grande performed some of her best hits including: "Be Alright", "Love Me Harder", "The Way", and "Break Free".
They say the vehicle and knife rampage in London on Saturday did little to ease their worries.
The singer put on a special benefit concert to raise money for the victims and victims' families of the Manchester attack, which killed 22 people and injured dozens of others. "And I think if we can be this team until we're old, continue to do things like this, let's not stop today", Cyrus told the interviewer.
Singers including Justin Bieber, Miley Cyrus and Katy Perry joined Grande for the tribute event at the Emirates Old Trafford stadium in Greater Manchester.
Proceeds from the show, which will broadcast live across the globe, will go to an emergency fund set up by the city of Manchester and the British Red Cross.