In the new film 21 Jump Street, Channing Tatum plays an undercover cop who's sent back to high school. The 31-year-old star tells Hollywood.com that the biggest way things have changed since he was a teen is that he didn't have the Internet. ""We didn't do our homework on MacBooks. We had to write it all out,"" he said, joking, ""I burned it in wood!"" Another difference: He had no way of knowing that some day embarrassing yearbook photos would surface online!

In this shot taken on Halloween during Channing's senior year, the Tampa Catholic High School student poses with a huge floppy bow and a fake heart tattoo on his arm. As for the sideways baseball cap, we're not sure if it's part of the costume, or just a reminder that this photo was taken in 1998.