Liam Gallagher has lauded a fan who took to the stage during a Green Day concert and performed 'Wonderwall.' This unexpected performance occurred after Green Day frontman Billie Joe Armstrong declined to play 'Good Riddance' at a show in Luxembourg. Following the fan's rendition, Armstrong reportedly removed the individual from the stage. The incident has sparked discussion online, with many praising the fan's audacity and Gallagher's supportive response.