Joseph Arthur

Joseph Arthur provided at least eight or so songs to Hell's Kitchen. Rosanne Arquette, who plays Liz, sings Joseph Arthur's song "Inviible Hands" when she first appears in the movie. And Joseph Arthur is the musician playing the guitar. Joseph Arthur shows up again the movie.
Liz is standing outside, waiting for Gloria and Patty. Joseph Arthur asks her to go with him Monday night and she says, "Whatever".
He also shows up in the movie when Liz is talking in front of a group of people, talking about her addiction. She says, "I want to thank God for letting me be sober today", or something along the lines of that. She says thanks and people begin clapping. The first person to hug her is Joseph Arthur.