Mariah Carey Surprises Fans With the Help of Jimmy Fallon [VIDEO]

So here is the deal.

Fans of Mariah Carey thought they were brought in for a listening party to hear Mariah's new music.  She just released 'The Art of Letting Go' on Monday.

Little did they know, Mariah was actually singing live in the next room!

She comes out and the fans go crazy.

There are screams, laughter, and some tears! LOVE!