The soul/funk star was asked to sing as part of a musical tribute to the late Whitney Houston that also included Jennifer Hudson. But she had second thoughts.Pictures: 2012 Grammys Show Highlights
Khan tweeted that she wasn't ready to perform after the passing of her friend.
As I grieve the loss of my friend and "little sister," I don't feel it appropriate to perform at this time. Continue to pray for the family.— Chaka Khan (@ChakaKhan) February 12, 2012
In 1978, Khan released the song "I'm Every Woman," written by the songwriting team Nickolas Ashford and Valerie Simpson. Houston later recorded a hit version of the track for "The Bodyguard" soundtrack.