Sam Smith & Mary J. Blige Perform 'Stay With Me' At The Grammys

Sam Smith performed his hit song "Stay With Me" at the Grammys on Sunday, joined by Mary J. Blige for an expectedly emotional and gorgeous performance. Smith released their collaboration back in June of 2014, helping to propel the track to its current fame.

Blige recently sang her praises of Smith to USA Today : "Some people just have a beautiful spirit, and you can feel their spirit and see their heart. Sam is not afraid to be honest. I love that about him. Not only is his voice amazing, you get raw emotion and whatever he's dealing with coming through that song."

"Stay With Me," comes off of Smith's debut album, "In The Lonely Hour." Smith is the only artist to receive nominations in the four major categories: Album of the Year (for "In The Lonely Hour"), Best New Artist, Song of the Year and Record of the Year (both for "Stay With Me"). Smith took home four awards, winning Best New Artist, Best Pop Vocal Album for "In the Lonely Hour," and Record of the Year and Song of the Year for "Stay With Me."

It was recently revealed that Sam Smith would credit and pay royalties to Tom Petty for "Stay With Me," due to the song's similarities to Petty's "I Won't Back Down." Smith's camp labeled the similarities as a "complete coincidence," and Petty seems to agree, labeling it a "musical accident " himself.