LOS ANGELES, California (CNN) -- Singer Natalie Cole underwent kidney transplant surgery at a Los Angeles, California, hospital Tuesday, according to a statement from her publicist.



Natalie Cole holds one of the Grammys she received in February for "Still Unforgettable."



Cole, daughter of legendary singer-actor Nat King Cole, has been receiving kidney dialysis three times a week since September, the statement said.



Cole was "resting comfortably" at Cedars-Sinai Medical Center in Los Angeles, it said.



"Ms. Cole's physicians have advised her to postpone her summer tour dates as she recuperates for the next three to four months," it said.



Rescheduled concert dates will be announced soon for Cole's tour, which is in support of her current double-Grammy-winning CD, "Still Unforgettable."
What surgery did Natalie Cole undergo? For how long has she been receiving kidney dialysis? When did she undergo the surgery? What surgery did Natalie Cole undergo on Tuesday? Which CD was her tour scheduled for? What is the name of the CD she has scheduled a tour for? What kind of surgery did Natalie Cole undergo? In which month did Natalie Cole begin dialysis? What award has Cole won?
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question: What surgery did Natalie Cole undergo?, answer: kidney transplant | question: For how long has she been receiving kidney dialysis?, answer: three times a week since September, | question: When did she undergo the surgery?, answer: Tuesday, | question: What surgery did Natalie Cole undergo on Tuesday?, answer: kidney transplant | question: Which CD was her tour scheduled for?, answer: "Still Unforgettable." | question: What is the name of the CD she has scheduled a tour for?, answer: "Still Unforgettable." | question: What kind of surgery did Natalie Cole undergo?, answer: kidney transplant | question: In which month did Natalie Cole begin dialysis?, answer: September, | question: What award has Cole won?, answer: Grammys