Svelte Jonah Hill makes ESPY appearance

In March, Jonah Hill told Us magazine he promised to shed 30 pounds from his frame before filming was scheduled to start on "21 Jump Street."

And slim down he did -- but now, with filming underway, Hill seems to have dropped even more weight off of his 5'7" frame. Hill turned up at Wednesday's (July 13) ESPY Awards in Los Angeles sporting a trim black suit and buzz cut.

'It's not fun," said Hill of his weight loss in a recent Los Angeles Times interview. "I wouldn't say it's the most fun endeavor I've ever took on in my life -- but it's important. And I'm enjoying it."

"If I eat something unhealthy now," he continues, "I kind of feel a little weird and my body hurts."