ET has the details...

ET has learned that Natalie Cole is out of the hospital and back home in Los Angeles.

The singer, who was diagnosed with Hepatitis C earlier this year, suffered a setback at the end of last month but is "doing much better," her rep says.

We're told that although her condition is improving, she's currently receiving kidney dialysis. However her rep says the dialysis is not related to Hep C, which he says is "under control" now.

ET recently caught up with Quincy Jones and he commented on fellow music legend Natalie. "We are very concerned about her," Quincy said.

"She's not doing well right now," he went on to say. Quincy said at the time that he might be able to help her if he can get through to her: "We had a doctor we met at a benefit the other night that says he has the new technology that could save her with Hepatitis C, so we're trying desperately to reach her to get in touch with her because she's in the hospital as we speak, with the dialysis and everything."

Quincy told ET that his relationship with Natalie goes all the way back to her childhood, when he worked with her father, Nat King Cole: "I worked with her father in 1960, [with] my band in Europe and Natalie was seven years old then and she went to school with my daughter. She was a sweetie back then."

ET talked to Quincy in Seattle on Friday, where his alma mater, Garfield High School, dedicated the Quincy Jones Performing Arts Center to the music producer.