"Rack City" rapper Tyga is rumored to have canceled a string of Brazilian tour dates over teenage girlfriend Kylie Jenner's rising jealousy.

Yahoo reports the 25-year-old rapper stands to lose at least $400,000 by breaching his contract and pulling out on the gig at the last minute. The loss to his reputation may prove to be even steeper.

"We are very upset in finding out an artist lacks the professionalism and the love for Brazilian fans, and allows something personal to interfere with his work schedule," fumed one event promoter.

Recent times have proven to be a major challenge to the harmony of the young couple's relationship. Tyga's change in plan and decision to stick close to his girlfriend comes amid widespread rumors she recently cheated on him with a fellow rapper known as "Stitches," who claims his rendezvous with her all went down after her recent 18th birthday.

As news of Tyga's abrupt cancellation started to spread fans instantly took to Twitter to voice their thoughts and openly mock the pair.

"Kylie Jenner made Tyga cancel a show in Brazil cos she was worried that he'd like the natural big booty's LOOOOL," wrote one commentator.

Despite all their apparent struggles, Tyga recently referred to his girlfriend as his "fiancee" in a video he posted to Snapchat.

"I don't f*** with nobody, it's just me, my fiancee, this lil' dog I just got," he said in an episode some suggest might be a parody because he makes no mention of his young son with ex Blac Chyna. As he talks, Kylie films him and intimately wraps her feet around his waist.

Rumors have long persisted that the two were planning to move away from L.A. and elope after Kylie, with New York City and Europe being mentioned as their leading destination picks.