Madonna and Taylor Swift Perform Together at IHeartRadio Music Awards

The 2015 iHeartRadio Music Awards promised there would be "unexpected collaborations" between the marquee artists attending the Los Angeles event, and the ceremony didn't disappoint as Taylor Swift joined Madonna for an acoustic rendition of the Rebel Heart singer's new single "Ghosttown." After the huge spectacles Madonna brought to her Grammy and ill-fated Brit Awards performances of "Living for Love," the singer, armed with just a few stools, employed a minimal stage setup. Fortunately, Madonna managed to stay upright throughout the entire performance!