Backstreet Boys "We're Here To Stay"

Backstreet Boys have told fans that they are back for good - and that they hope to be as big as rock veterans the Rolling Stones.

Singer Nick Carter has admitted that he has battled addictions to drink and drugs for several years, but determined to make the most out of their second shot at fame, he has sobered up and is back in top shape.

"There are demons I am fighting but I just want to be fit and healthy," Nick told WENN. "If you fall off the horse, you just have to get back on again. We're here to stay - we want to be as big as the Rolling Stones."

Backstreet Boys will be releasing a new album, titled 'This Is Us', in October 2009. The guys have been working with producers and artists such as RedOne, Akon, T-Pain, Ryan Tedder, Ne-Yo and Lil Wayne.