Lady Gaga took to the stage in her male ego, Joe Calderone.
Adele wowed the celeb studded audience with her performance of 'Someone Like You'
Beyonce performed Love on Top with a shocking reveal at the end of her performance announcing she wants everyone to "feel the love that's growing inside of her".
Bruno Mars performed a tribute to Amy Winehouse with a Medley/Valerie performance. Along with this song Russel Brand and Tony Bennett also spoke in the tribute.