AceShowbiz -

During a recent concert in Brazil, Demi Lovato slammed Joe Jonas with whom she broke up in May, only 2 months after confirming their romance to the media. The "Sonny with a Chance" star took a jab at her ex-boyfriend when singing "Solo", a song taken from her second album "Here We Go Again".

Demi changed part of the song lyrics from "why don't you stick to acting?" to "why don't you stick to tambourine?". Though the teen singer didn't mention Joe on that line, but many believed that she referred to him as the middle of the Jonas Brothers occasionally plays tambourine in addition to taking the mic when performing with his band.

Despite their split, Demi Lovato and Joe Jonas will reunite for a "Camp Rock 2: The Final Jam" tour which will be kicked off on July 27 in Dallas, Texas. Along with Nick Jonas, Kevin Jonas and the other "Camp Rock" cast, they will stay on the road until August 31.