One Love Manchester Concert

Liam Gallagher surprised concertgoers and joined Coldplay onstage at Ariana Grande's One Love Manchester Concert Sunday night, where they sang renditions of "Live Forever" and the Oasis hit "Rock N Roll Star."

To the disappointment of many fans who held out hope that Liam's brother Noel Gallagher would show up for the performance, but no one was as disappointed as Liam.

"Manchester id like to apologise for my brothers absence last night very disappointed stay beautiful stay safe LG x," Liam tweeted after the performance. "Noels out of the fucking country weren't we all love get on a fucking plane and play your tunes for the kids you sad fuck."

Despite his brother's absence, Liam gave a memorable performance alongside the star-studded lineup that included Justin Bieber, Katy Perry and Miley Cyrus who came together to honor the memory of those who died as a result of a terrorist attack that took place after Grande's May 22 concert in Manchester.

"What an amazing night last night pure love vibrations nobody comes close to Manchester love forever LG x," Liam tweeted.

Watch Liam and Coldplay perform "Live Forever" in the clip (below).