Lady Gaga kicked off the One World: Together At Home Special concert on Saturday night – with other stars including Celine Dion, Beyonce ... and against floral wallpaper to perform her own ...

Lady Gaga gathered together huge stars including Stevie Wonder, the Beckhams, Sir Elton John, Celine Dion and Beyonce for One ... of a piano and against floral wallpaper to perform her own track ...