Let's throw it back a bit. Way back, to when dinosaurs roamed the Earth. I'm talking about the early '90s, when Barney & Friends was on TV.
Just look at Demi and Selena. They were destined for great things — Camp Rock, The Wizards of Waverly Place, and Princess Protection Program, to name a few.
But then...the unthinkable happened. Faster than you could say "guest appearance on The Suite Life of Zack & Cody," it looked like Semi was on the ROCKS.