Brace yourself, Chris Brown ... the chick previously best known as your ex-gf just upgraded her title to ... Karrueche Tran -- star of a hit Emmy nominated show.
Karrueche's budding acting career just got a boost when her most recent gig for "The Bay" -- an online soap opera -- got nominated for a Daytime Emmy for Outstanding New Approaches Drama Series.
Congrats KT.
