Holly Robinson Peete, Allegedly hooked up with Johnny, 1988
Rumors of costar hookups are nothing new, so it should be no surprise that sexy "21 Jump Street" stars Johnny and Holly had tongues wagging back in the late '80s. At the time, Holly denied that they were anything but professional. "Because of the attraction of our characters, Tommy and Judy clearly like each other, and the fact that off-screen Johnny and I do hang out together, people are always asking if we have a thing going on," she said. "I can tell you that in real life we're just buddies, that's all!" Would she change her answer 22 years later?