VIDEO: Lady Gaga Joins U2 On Stage for Performance of 'Ordinary Love'

Lady Gaga joined ROCK LEGENDS U2 on stage at New York's Madison Square Garden last night, Sunday, July 26th, for a surprise collaboration on "Ordinary Love," the band's track to the 2013 Nelson Mandela biopic Mandela: Long Walk To Freedom. The 'Cheek to Cheek' singer delighted the crowd with by playing the piano as she dueted with lead singer, Bono.

U2 shared the exciting appearance on Instagram, along with the caption: u2‎All hail Her Gaganess @ladygaga#U2ieTour. Watch the performance below!

Lady Gaga will star in the upcoming installment of FX's AMERICAN HORROR STORY. She recently appeared onTHE ACADEMY AWARDS where she performed a musical tribute to the 50th Anniversary of The Sound of Music. Her chart-topping album "Cheek to Cheek" features duets with music legend Tony Bennett.