Teen singing sensations THE Jonas Brothers are heading for a split because bandmember Kevin Jonas wants to go solo, according to U.S. reports.
The band - sibling trio Kevin, Joe and Nick Jonas - have quickly become international chart stars with a huge, loyal fanbase.
But sources claim eldest brother Kevin, 21, is unhappy with the group's young sound, and is secretly working on a solo album.
An insider tells Star magazine, "(He) wants adult fans, and he wants to sing adult music. He loves his brothers but he definitely wants his solo career and won't be part of the group forever."