The former Pussycat Doll has reportedly held a secret visit with the late revolutionary's daughters at London's Mandarin Hotel and they discussed a potential performance, reported Sun Online.
"During the chat Nicole had with the daughters it was mentioned she should sing at his funeral, or at least be a very prominent guest," a source said.
The 'X Factor' UK judge once sang for the political activist, choosing to perform 'Precious Lord', but she recently joked he was less than impressed with her rendition.