(Cover) - EN Star Style - Justin Bieber has praised his personal trainer for being a beast.

The 16-year-old heartthrob has been increasing his fitness regime recently in order to look good for the ladies.

Dreamy Justin sought the help of celebrity keep-fit guru Dolvett Quince, who is renowned for putting stars through gruelling sports regimes.

Dolvett has been just as tough on the singing sensation, so the pop star took to his Twitter page to tell fans just how much iron hes been pumping of late. He advised his followers on the social-networking site to keep up-to-date on all of hunkys Dolvetts tweets.

serious workout today with my new trainer @dolvett - dude is a beast and he is getting me right for these girls. follow him (sic), wrote Justin.

With all this extra working out, handsome Justin is set to drive his female fans even wilder than he already does. Its surprising the star even managed to find time for sport as his schedule lately has been jam packed. As well as concentrating on music, the Canadian star has ventured into the world of fragrance and is launching a unisex scent called My World. (C) Cover Media