Singer Amy Winehouse will not be performing at Sunday night's Grammy Awards telecast following the rejection of her U.S. visa application by the U.S. embassy in London. Winehouse was recently fined in Norway last year for possession of marijuana and was recently videotaped showing her apparently smoking a crack pipe. Stills from the video were posted in the London tabloid, The Sun. Reporting on the U.S. decision, entertainment reporter Colin Peterson said on the BBC Thursday, "The Grammys was the carrot her family and record company used as a way to persuade her to get into rehab. Now they're going to have to find another way to motivate her."