Gaga sings a duet with music veteran Bono and band U2 in Las Vegas as she makes ANOTHER surprise visit on to a rock stage
Lady Gaga made a surprise appearance on Wednesday as she joined U2 for a duet at their gig in Sphere, Las Vegas. The singer performed 'Shallow' and other duets, as 'I Still Haven't Found What I'm Looking For'.
Share this video: Video: Lady Gaga joins U2 for 'Shallow' at Las Vegas' Sphere
