Mariah Carey, Ashlee Simpson and More of the Most Cringeworthy Lip-Synch Fails of All Time

The Most Cringeworthy Lip-Sync Fails Ever

Is this thing on? Through the years, many pop stars, including Mariah Carey, Ashlee Simpson and Britney Spears, have made headlines after getting caught red-handed lip-synching on stage. Relieve the most cringeworthy flubbed performances in the video above!