he was 15 his brother nick was discovered singing in a barber shop then the record company decided that they would have a recording contract with them all so then they performed the title song for American dragon's second series in 2005 that's when the Jonas brothers started
I believe Joe Jonas was 16 years old BELIEVE IT OR NOT
Kevin was 17, Joe was 15, and Nick was 13 when they started performing as Jonas Brothers!
nick started singing when he was 6 but the band startd when he was 13 joe was 16 and Kevin was 18
he was 13 years old when they started the Jonas brothers.
he was 18
He was 16 years old.
He was 14!
joe was 8 years old
joe is 19 and nick is 16!!!!!
Nick was 13. Joe was 16. Kevin was 19.
i think he was 13 years old
Nick was 12 so Joe would've been 14 and Kevin would've been 16