Mariah Carey Sings 'All I Want for Christmas Is You' Live at Rockefeller Center Tree Lighting! (Video)

Mariah Carey is the lady in red while hitting the stage for a performance at the 2014 Rockefeller Center Christmas Tree Lighting Ceremony on Wednesday evening (December 3) in New York City.

The Grammy-winning singer performed her classic song “All I Want for Christmas Is You” for the crowd and did all her vocals live with a group of children giving her backup via their cute dance moves.

Mariah was set to pre-tape her performance the night before, but the rain kept her from hitting the stage while the production crew and audience waited for two hours.

“Last night’s situation was beyond my control. I apologize to all that showed up, you know that I would never want to disappoint you,” Mariah tweeted the next day.