Mariah Carey
Mariah Carey has a legacy that has been able to outlast any faux pas, for whatever reason. She closed out 2016's New Year's Rockin' Eve show in Times Square by refusing to sing because she couldn't hear the track. She also lip-synced during the same performance. All she had to say for her diva behavior was "it happens."
Queen of Christmas
Say what you want about her, but Mariah Carey still has Christmas in the palm of her hand. Whether she can really sing or not, you can't go a single holiday season without hearing "All I Want For Christmas Is You." That song will live in infamy on the airwaves.