Jon Cryer, Angus T. Jones and Ashton Kutche Jon Cryer, Angus T. Jones and Ashton Kutche

As if people weren't going to tune in already, Ashton Kutcher, Jon Cryer and Angus T. Jones popped up on The Late Show with David Letterman Thursday to present the "Top 10 Reasons to Watch the New Season of Two and a Half Men."

5 things you don't know about Two and a Half Men's Angus T. Jones

Among them: Cryer needs to pay for his really big new house, and if we don't watch, Kutcher threatens to make Dude, Where's My Car 2.What's the No. 1 reason? Well, it sounds like something Charlie Sheen would say.