From Selena Gomez's AMAs Performance to Ashlee Simpson's SNL Snafu: The Most Memorable Lip Sync Controversies

The most-followed celeb on Instagram bravely performed on the 2017 American Music Awards stage months after undergoing a kidney transplant — and while the singer's first performance since the surgery proved to be memorable, viewers flocked to Twitter to criticize Gomez for allegedly lip syncing. "I love how this big deal is made that Selena Gomez hasn't performed in a year and then show comes out and lip sync's [sic]," wrote one user. But the singer's fans were quick to shut down the haters. “May i remind y’all selena is still recovering from a kidney transplant and she just gave the performance of a lifetime. words can not express how emotional i’m feeling right now. literally shaking,” wrote one loyal fan.