She made amends by offering to sing live Wednesday.

You've kept me here, in your hearts, and I keep you in mine always. We are #lambily! #ThereForMe ?? ??

— Mariah Carey #MC20 (@MariahCarey) December 3, 2014

I will be opening tonight's live show in Rockefeller center with "All I Want For Christmas Is You"!!!! Tune in at 8pm on NBC! #MC20 ??????

— Mariah Carey #MC20 (@MariahCarey) December 3, 2014

She even shared a snap from backstage of her getting ready.

Later on stage, dressed in red, Carey appeared visibly frustrated with her ear piece and seemed to struggle with her breathing, as her voice cracked at times.

Gawker called her performance \"disappointing,\" while Deadspin, which posted an unedited raw version of her vocal track, called it a \"disaster.\"

Mimi's longtime fans, however, jumped to her defense on social media, lauding her bravery for singing live.

What do you think?

","url":"https://www.goodmorningamerica.com/culture/story/mariah-carey-sang-live-rockefeller-tree-lighting-27364274","contentType":"story","section":"news","wordCount":340,"columns":2,"inlinesTypes":["markup","contentPromo","contentPromo","social"],"provider":"ABC News","publisher":{"name":"ABC News","logo":{"name":"ABC News","url":"https://s.abcnews.com/images/Site/abc_logo_aluminum_60px.png","height":60,"width":150,"@type":"ImageObject"}},"contributors":[{"name":"Good Morning America","url":"","role":"","logo":"","logoAlt":"","type":""}],"publishedDate":"2014-12-04T17:03:00Z","firstPublishedDate":"2014-12-04T17:03:00Z","modifiedDate":"2014-12-04T22:32:38Z","alternativeHeadline":"Singer made good on her promise to sing after turning up late Tuesday.","articleSection":"Entertainment","metadata":{"timestamp":"2014-12-04T17:03:00Z","dateModified":"2014-12-04T22:32:38Z","sourceLine":"GMA","keywords":"mariah carey, Rockefeller Tree Lighting, mariah carey Rockefeller Tree Lighting, mariah carey sings live","title":"Why Mariah Carey Sang Live at Rockefeller Tree Lighting ","description":"Singer made good on her promise to sing after turning up late Tuesday.","canonicalUrl":"https://abcnews.go.com/Entertainment/mariah-carey-sang-live-rockefeller-tree-lighting/story?id=27364274","noIndexNoFollow":false},"dateline":"Dec. 4, 2014—","isShared":false,"shareData":{"description":"Singer made good on her promise to sing after turning up late Tuesday.","title":"Why Mariah Carey Sang Live at Rockefeller Tree Lighting ","url":"https://www.goodmorningamerica.com/culture/story/mariah-carey-sang-live-rockefeller-tree-lighting-27364274","shareButton":"inline","networks":["facebook","twitter","pinterest","email","link"],"source":"GMA","img":"https://s.abcnews.com/images/GMA/default-img-16x9.png","size":"m","popoverPlacement":"bottom"},"socialImage":{"caption":{"text":"Mariah Carey performs at the 82nd Annual Rockefeller Center Christmas Tree Lighting on Dec. 3, 2014 in New York City.","source":"Paul Zimmerman/Getty Images","fauxSpacing":"--","lines":3},"image":{"src":"https://s.abcnews.com/images/Entertainment/gty_mariah_carey_mt_141204_16x9_992.jpg?w=992","alt":null,"ratio":"16x9","sources":null}},"logoRadius":true,"leadMediaImage":{"caption":{"text":"Mariah Carey performs at the 82nd Annual Rockefeller Center Christmas Tree Lighting on Dec. 3, 2014 in New York City.","source":"Paul Zimmerman/Getty Images","fauxSpacing":"--","lines":3},"image":{"src":"https://s.abcnews.com/images/Entertainment/gty_mariah_carey_mt_141204_16x9_992.jpg?w=992","alt":null,"ratio":"16x9","sources":null,"fetchPriority":"high"}},"leadMediaVideo":{"video":{"id":"27357479","autoplay":true,"ambient":false,"duration":"NaN:NaN","headline":"Mariah Shows Up ... Finally","aspectRatio":"16x9","posterImg":{"url":"https://s.abcnews.com/images/Entertainment/gty_mariah_carey_mt_141204_16x9_992.jpg?w=992","ratio":"16x9","caption":"Mariah Shows Up ... Finally","credit":"ABCNews.com","sources":null},"live":false,"playlist":[{"id":"27357479"},{"id":"25986638"},{"id":"25082012"},{"id":"27373123"},{"id":"18150404"}],"ambientFullId":null}},"leadMediaGallery":{"disableFullscreen":false,"useDotPagination":true,"media":[]},"featuredTags":{"tags":[]},"relatedTags":{},"seo":{"JSONLD":{"videoObject":{"name":"Mariah Shows Up ... Finally","description":"After missing taping for tree-lighting concert, Mariah Carey appeared for the live portion of the broadcast.","uploadDate":"2014-12-04T17:03:00Z","thumbnailUrl":[null,"https://s.abcnews.com/images/Entertainment/gty_mariah_carey_mt_141204_4x3_992.jpg?w=384","https://s.abcnews.com/images/Entertainment/gty_mariah_carey_mt_141204_16x9_992.jpg?w=384"],"url":"https://service-pkgabcnews.akamaized.net/opp/hls/abcnews/2014/12/141204_wnn_skinny_,500,800,1200,1800,2500,3200,4500,.mp4.csmil/playlist.m3u8","contentUrl":"https://service-pkgabcnews.akamaized.net/opp/hls/abcnews/2014/12/141204_wnn_skinny_,500,800,1200,1800,2500,3200,4500,.mp4.csmil/playlist.m3u8","publisher":{"name":"ABC News","logo":{"url":"https://s.abcnews.com/images/Site/abc_logo_aluminum_60px.png","@type":"ImageObject"},"@type":"Organization"},"mainEntityOfPage":{"@type":"WebPage","id":"https://abcnews.go.com/Entertainment/mariah-carey-sang-live-rockefeller-tree-lighting/story?id=27364274"},"duration":""}}},"lead":{"featuredTags":{"isFeatured":true,"tags":[{"label":"News","href":"/news","ariaLabel":"News - index"}]},"ratio":"16x9","centeredLeadStacked":true,"enableBackgroundColor":true,"caption":{"text":"Mariah Shows Up ... Finally","fauxSpacing":"--","lines":3,"credit":"Paul Zimmerman/Getty Images"},"type":"lg","mediaType":"video"},"everscrollUrl":"https://www.goodmorningamerica.com/culture/story/mariah-carey-sang-live-rockefeller-tree-lighting-27364274","ads":{"Sticky":{"disabled":false},"RightRail":{"disabled":false},"InlineBox":{"disabled":false,"articleConfig":{"alignLg":"right"}},"InlineOutstream":{"disabled":false},"End":{"disabled":true},"Taboola":{"disabled":false,"disableAutoInsert":true,"position":"bottom","pageType":"article","headerText":"Sponsored Content by Taboola","config":{"mode":"alternating-thumbnails-a","container":"taboola-below-article-thumbnails-27364274","placement":"Below Article Thumbnails","targetType":"mix","network":"goodmorningamerica-gma","type":"article"}}},"analyticsData":null}},"analytics":{"accountID":"wdgnewwdgnewgmawebdev","ns":"gma","pageName":"gma:news:story","pageType":"story","pageUrl":"https://www.goodmorningamerica.com/culture/story/mariah-carey-sang-live-rockefeller-tree-lighting-27364274","globalSpecVersion":"v1.08","siteDifferentiator":"gma:site","tagID":"g_page01","section":"news","title":"Why Mariah Carey Sang Live at Rockefeller Tree Lighting ","pubTime":"12:03","pubDate":"12-04-2014","modTime":"17:32","modDate":"12-04-2014","id":"27364274","editorialOtherSubjects":"mariah carey, Rockefeller Tree Lighting, mariah carey Rockefeller Tree Lighting, mariah carey sings live","wordCount":340,"columns":2,"authors":"Good Morning America","authorsUnit":"none","authorsBureau":"none","subBrand":"Good Morning America","provider":"Good Morning America","videoName":"Mariah Shows Up ... Finally","videoId":"27357479","mediaOnPage":"markup,contentPromo,social,video"},"taboola":{}},"request":{"headers":{},"httpVersion":"1.1","method":"GET","url":"/news/story/mariah-carey-sang-live-rockefeller-tree-lighting-27364274?userab=shop_ui_series-292%2Avariant_a-1147","vary":{"host":"www.goodmorningamerica.com","cached":true,"path":"/news/story/mariah-carey-sang-live-rockefeller-tree-lighting-27364274","forwarded-proto":"https","device":"desktop","userab":"shop_ui_series-292*variant_a-1147"}},"viewport":{"width":1260,"height":0},"user":{}};