Mariah, Gaga, Adele & Elton Belting "All I Want for Christmas is You" Is Everything

Mariah Carey will once again be saying, “Why you so obsessed with me?” after we freak the f#ck out over her new Carpool Karaoke session with James Corden.

Corden asks what the diva (with the ridiculously insane range) what she wants for Christmas. Her response? Simple. For Corden to sing her classic Christmas anthem, “All I Want for Christmas is You.”

Not only do Corden and Mariah sing, Corden gets our favorite celebs to join in, including Lady Gaga, Adele, Gwen Stefani, Elton John, and Nick Jonas … just to name a few.

Get ready for futile attempts to copy Mariah’s riffs, along with some over-the-top finger wagging.  

Enjoy!