Mariah Carey Accused of Lip-Syncing at AMAs Carey performed for the br second time since 2008 at the br American Music Awards on Tuesday. The pop diva belted her new single, br "With You," in what many people br regarded as a flawless performance. Other people weren't so convinced and br took to Twitter to voice their speculation. Twitter user Twitter user Twitter user A rep for Carey br commented on br the remarks: Mariah Carey rep, to 'Fox News' Carey launched her comeback br with the single "GTFO," which br was released shortly before "With You." "With You" is set to appear on br Carey's upcoming album, which br is expected to be released later this year. Carey has received 10 AMA awards br during her musical career and is br the only solo artist of all time br with the most No. 1 hits.