Mariah performed her brand new single "You're Mine (Eternal)" at the BET Honors at Warner Theatre in Washington DC Saturday night (Feb. 8).
Mariah, who performed on top of a grand piano, took the stage in a plunging black gown by with matching long gloves, a sparkly necklace and drop earrings.
"BET Honors" will premiere during Black History Month on Monday, February 24 in the USA and around the world on BET's international network on February 28, 2014 at 9:00pm GMT.