The documentary which is co-produced by Lance Bass details how several boybands in the 90s, including NYSNC and Backstreet Boys, were scammed by their manager, Lou Pearlman.

The 'Uptown Funk' hitmaker, who will turn 40 next week, has admitted he sometimes feels too old to be a popular musician but takes comfort in the fact other older musicians such as Pharrell Williams still manage to create chart-topping hits.