Nick was 13. Joe was 16. Kevin was 19.
With 6 he was on Broadway and with 12 he released his first album, with 13 the Jonas brothers released their first album but really famous he became with 14 when they released the "Jonas Brothers" album.
He was 16 years old.
When Jonas Brothers' first CD "It's About Time" came out, Nick Jonas was 13
When they became very popular Nick was 13, Joe was 16, and Kevin was 18 i think.
nick started singing when he was 6 but the band startd when he was 13 joe was 16 and Kevin was 18
I was about 15 or 16.
The Jonas brothers were about 10 or 11.
he was 12 but then it wasnt called the Jonas brothers Kevin and joe were just helping to develop nick's solo career but i guess he was like 14 when they offficially came the Jonas Brothers
nick was 10 joe was 13 and Kevin was 15
Nick-12 Joe-15 Kevin-17
He was 18
About 18. XD.