We hear Rihanna is writing a song for her upcoming album — featuring a cameo from Miami-based femcee Trina — dissing her allegedly abusive former boyfriend Chris Brown.

“She’s writing a song with rapper Trina dissing Chris,” an insider reveals in the June 8 issue of Star Magazine. “Rihanna’s planning to put it on the album to really stick it to him…She even changed her ringer on her cell to another Trina song called “Wish I Never Met You.”

Here’s the official music video for Trina’s “Look Back At Me” (Featuring Killer Mike).

Trina Ft. Keyshia Cole “I Got A Thang For You” Music Video

Trina bares all on the April 2008 issue of Black Men Magazine.

Trina bares all (well almost) on the March 2008 issue of Smooth Magazine.