Entertainment Tonight.

Say what? Fans of American Idol were less than pleased after the finale episode with the alleged lip-sync performance of panel judge, Mariah Carey. Shortly after Candice Sullivan was crowned the next Idol, tweeters took to Twitter to express their disappointment that it appeared Mariah Carey was lip-synching during her much-anticipated act.

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Going toe to toe with former Idol judge Jennifer Lopez who performed her new single, Live It Up, along with Pitbull, Mariah belted a medley of some of her biggest hits including Vision of Love, Make It Happen, My All, Hero, We Belong Together, and her new single #Beautiful.

Fans who waited anxiously for Mariah to trade her seat at the judges table and get back on stage were less than impressed and shared their dissatisfaction on the popular social media site saying things such as :

-@MariahCarey was definitely lip syncing during her performance on #idol...I guess she's lost it, why else would she have to lip sync??

-Mariah Carey was either lip syncing like a mofo or my tv is delayed... I'm betting on lip synching. #AmericanIdolFinale

-Waited the entire season for @MariahCarey to perform and she gives us recorded watered down lip syncing.... she should be ashamed! #idol

-Music Box the first @MariahCarey CD I bought, title of new album "Lip Syncing"??...my god how terrible on #idol, come on, you can do better.

-Mariah Carey did a HORRIBLE job at lip syncing :\ I'm not even being shady ... Or being biased... Like ... Why?

-Good Lord Mariah Carey lip syncing too. And not well. This is just sad. #idol

-Watching Mariah Carey lip-syncing on American Idol reminds me of watching Godzilla attack Tokyo but with more chandeliers.

-"Dad, I thought it was the TV!! I said maybe my TV was off!!"- him on Mariah Carey's lip syncing

-Mariah Carey lip syncing on AI....kind of ironic since she critiques live performances when she can't even do it herself. #HangItUp

-Hahaaa Mariah Carey's Idol Finale Performance Could Be The Worst Lip Syncing Of All Time

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The American Idol finale also included performances by Gangnam Style singer Psy, Season 8 runner-up Adam Lambert, and panel judges Keith Urban and Randy Jackson to name a few.

Do you think Mariah Carey was lip syncing during her performance? Sound out below.

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