Rapper Chipmunk has stood up for his pal Chris Brown, saying that he will back up the singer till the day he dies.

Brown was convicted in 2009 of assaulting ex-girlfriend Rihanna – who Chipmunk recently bumped into – but in Chipmunk, Brown has a friend that will look past his former transgressions. The 20-year-old rapper also revealed that collaborating with Brown on their single ‘Champion’ and his album ‘Transition’ was the "biggest learning experience" he's ever had.

He told BANG Showbiz: "Working with Chris Brown was definitely the biggest learning experience I've had in my musical career so far and I would stand behind Chris as a talented artist until the day I die.

"Personally, too. Yeah, he's my friend and I will always support him."

Check out some behind-the-scenes shots from the video for ‘Champion’ below: