Last week, we heard Greg Gutfeld discuss his brand-new book on Fox and Friends, Kilmeade & Friends, and Media Buzz, but this morning he made an appearance on Red Eye to talk it over with ... Greg Gutfeld.

 "By the way, you look great. What are you doing? Is it free weights, aerobics, a combination of both?" Gutfeld asked Gutfeld.

Watch the full segment in its hilarious entirety, and catch Red Eye, weekdays at 3a ET.

You can go here to buy Not Cool: The Hipster Elite and Their War on You.