If Sam Smith is upset after being called a "chubby fuck factory" by RiFF RAFF, the British singer isn't letting it affect his performance. He recently stopped by the BBC's Live Lounge for a session that featured renditions of "I'm Not the Only One" and Tracy Chapman's 1988 hit "Fast Car." Much like his take on Whitney Houston's "How Will I Know," Smith's version is slower and sparer with almost all the focus on his signature delicate crooning. After all, the man knows his strengths. Watch it above, listen to his Live Lounge version of "I'm Not the Only One" below, and catch Sam on tour in the U.S. and Europe through November.