Pussycat Doll Nicole Scherzinger let her claws out for a gut-wrenching live performance in Monte Carlo. Fun fact: Nicole's "Don't Hold Your Breath" and Adele's "Someone Like You" came to blows at the UK singles and album charts a few months ago.
How about some synth with your Adele? Mike Posner put a trance-ish spin to the track and threw in bits of Adele's remixed voice. Fun fact: He produced the song on a day off.