Karrueche Tran, Rihanna Fight: Ex-Girlfriend Warns Singer To 'Leave The Boy Alone' With Shirt About Chris Brown, Is Karrueche Threatening Singer?

Karrueche Tran may be calling out Rihanna via Instagram through message on her shirt. Chris Brown's ex-girlfriend who reportedly is on vacation with the R&B singer posted a picture with a large tank top that read, "Leave the BOY Alone."

The black tank top, which is from BOY London, may have been the third blow to Rihanna after coming back to L.A. after wrapping up her European leg for her "Diamonds" tour.

Chris told Hollywoodlife, "[Fans have] seen me on and off again with different girls, you know who they are, but right now, as a 24-year-old man, I just choose to be single!" He added, "I'm still good friends with them," Chris said referring to Tran and Rihanna.

The singer is taking time out for himself and his work, "[Now] it's just me being focused with my music and doing this stuff. Right now, I'm in my prime."

Since his announcement he was rumored to have went on a romantic getaway with Karrueche Tran to Geneva. Video of Chris Brown explaining that he went to Geneva to clear his mind and think of new songs to write about for his new album with the help of his ex-girlfriend Karrueche.

We smell an Instgram catfight!