The Black Eyed Peas star changed his eating habits and began working out with a personal trainer recommended by his bandmate Fergie, and will.i.am is delighted that his hard work has paid off.

He tells ETOnline, "It's a different type of trainer when a dude inspires you to watch what you eat and change your whole, like, way of life. I just eat fruit, soups and fish, and I've been doing that stuff for six months. (I) lost 30 pounds. I haven't been this weight since I was in the 12th grade."