Trina hit up Atlanta’s Harlem Ultra Lounge last week rocking denim leggings paired with Louboutins and a phony pony (May 19, 2012).

The female rapper formerly known as “the baddest b*tch” graciously posed for pictures with fans but appeared to hide behind her designer sunglasses all night long, as she partied the night away beside her rumored new boo, Nisha Rockstarr.

But here’s the tea…? allegedly while the “diamond princess” was propped up in the “A,” she shoulda been performing in St. Louis and promoters say they paid her thousands of dollars only to be left hanging!

Details + more photos of Trina partying in Atlanta below…

According to several letters TMZ obtained, correspondence between the rapper’s camp and promoters show she was paid a $7,000 deposit to perform at a club called Imperial Palace in St. Louis on May 19th.

While there is proof that Trina’s team informed the promoter there was a scheduling conflict, the rapper never formally canceled in writing, so the promoter went full steam ahead with the event.

Needless to say, May 19th rolled around — and Trina was nowhere to be seen.

The promoter tells TMZ, the event went on without Trina — held as a regular party at the club with DJ music — but people were pissed … and several demanded refunds.

Now, the promoter tells us, she’s planning to sue Trina for at least $16,000 — which includes Trina’s $7,000 fee, promotional costs, and other damages.

Representatives for Trina say that while she did agree to perform the gig, Trina cancelled long before the event due to other obligations.? They also claim she tried to return her $7,000 advance but the promoter refused to accept it.

Party on then…

Princess (formerly of Crime Mob) and Trina…

Trina’s phony pony…

Hmmm… Pick One? WORK in St. Louis or Party in the “A”?

I’ve been to St. Louis once or twice and yeah… I woulda ditched it for Atlanta too!? But er ummm…. I wonder what Trina thought that $7,000 was for? New shoes and champagne?

Photos: Prince Williams/ATLPics

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