Chris Brown

R&B star Chris Brown will appear on ABC's 20/20 for an in-depth interview airing Dec.11.

In the interview, which was conducted by Good Morning America's Robin Roberts and taped last weekend, Brown discusses his assault of ex-girlfriend Rihanna in February, according to The Associated Press.

Rihanna opens up more on assault, Chris Brown calls it a "private matter"

Brown is set to release his new album, Graffiti, on Dec. 8. Although clips of Brown's interview may be shown on GMA, the singer will not perform live on the show, an ABC rep said.

Brown, 20, has previously spoken about the attack on Larry King Live and MTV News. Rihanna was interviewed earlier this month by ABC's Diane Sawyer.