The Suite Life of Zack and Cody is of course a truly beloved series in well, all of Disney Channel history. We know, a bold claim to make but valid if we say so ourselves. So many of your fave celebrities actually guest-starred on the show before they became the stars you now and love now.
Did you know that Selena Gomez appeared in an episode before the world even really knew who she was? It was a year before Wizards of Waverly Place started and she had to kiss Dylan Sprouse on the lips (which was actually her first kiss ever!). First of all, that's one epic first kiss story. But totally surprising that this was her big Disney Channel debut, right?
It turns out, Selena's one of many who guest-starred on the show. Remember when Zac Efron shared a smooch with Ashley Tisdale? And baby Jaden Smith will just melt your heart. Plus iCarly star Nathan Kress played Jamie on the show, well, before iCarly even existed!
Literally everyone took a trip through the Tipton.
Click through to see more celebs who appeared on the show!
This post was originally published on October 10, 2014 and has since been updated.