Lady Gaga make special appearance at The Sphere in Las Vegas. She joined band U2.
Lady Gaga wore a leather jacket and sunglasses.
Lead singer Bono introduced Lady Gaga by saying, “Would you welcome to our turntable, the divine — the divinyl! — Lady Gaga."
She sang 'Shallow from A Star is Born', U2's songs 'All I Want Is You' and 'I Still Haven’t Found What I’m Looking For'.