Mariah Carey performs two concerts in one night (UNICEF + Qatar Airways)...

Back in Cali, Mariah Carey joined UNICEF to support their mission in saving the lives of children.

Mariah's vocals were not in the best form when she delivered her set at UNICEF's sixth annual ball (sponsored by Louis Vuitton), last night. She did so much better at the Beacon theatre. Hopefully, she can get it together when she kicks off her UK tour in March. Check out some previews from her set below.

Mariah WBT
VIDEO: @MariahCarey performing classic 'WBT' at #UNICEF (via Aimee)Jan 13, 2016.
Posted by MariahRaw on Tuesday, 12 January 2016

On that same night, she performed a private gig for Qatar Airways at Dolby theatre. This was in celebration of Qatar Airways flight expansion:

Private Mariah Carey Performance... Only the best with @qatarairways and #latogether

A video posted by JENN BARLOW (@jennbarlow) on Jan 12, 2016 at 9:45pm PST

"Mariah" Rocked the #qatarairways #gala tonight for we small group of 500 close friends and celebs! She is amazing!!! #instaredcarpet #mariahcarey #singer #wow #private #concert #airlines #QatarAirways #congrats

A video posted by Adventure Girl, Stef Michaels (@adventuregirl) on Jan 12, 2016 at 10:45pm PST