Listen up, Jersey Shore fans: Mike "The Situation" Sorrentino knows he's not the only star with killer abs.

The 28-year-old self-described guido (whose new advice book, Here's the Situation, is out now) tells which dudes have "the best abs in Hollywood" -- besides him, of course.

In this exclusive video, the reality star also tells Us about a few "uncomfortable" ab-flashing moments with fans and more.

Watch the exclusive interview now!