Nick Jonas is older than his years

Nick Jonas is old before his time.

The 16-year-old Jonas Brothers singer has always been very mature for his age and is dedicated to his work, claims his mother Denise.

Denise said: "I used to go to the hairdresser to get my hair straightened and Nick being just six, I would to take him with me. He used to sing to the customers and earn a little extra money for sweeping up.

"People noticed and he wound up with an agent. Within two years, he was on Broadway. He didn't look back. One vacation, he even asked if he could stay on and keep working. That's Nick. An old soul."

Despite his young age, Nick - who has previously romanced Disney stars Miley Cyrus and Selena Gomez - has already fulfilled one of his lifelong ambitions, meeting his hero Elvis Costello.

He said: "He was such an amazing guy. I mean, just one song from something like that can teach you so much. 'I Don't Want to Go to Chelsea' is one of those songs. I can't listen to it enough."