WATCH: Lady Gaga Joins U2 On Stage In New York For Brilliant Rendition Of ‘Ordinary Love’

There was a surprise in store for fans attending U2's latest gig in New York this week, with a very special guest joining them on stage. The band are currently performing an eight-night residency of shows at Madison Square Garden and last night, Lady Gaga made a special appearance to perform Ordinary Love with Bono. The track was written for the Nelson Mandela biopic Mandela: Long Walk To Freedom and Gaga played piano for the special version, as well as putting in a powerhouse vocal performance with the band. There has been no shortage of stars attending the iNNOCENCE + eXPERIENCE tour, with Sir Paul McCartney, Nile Rodgers, Alicia Keys and Jon Bon Jovi among those spotted at the iconic venue.