"I can't believe it's been 5 years since the first table read of #AustinandAlly. It changed our lives forever. We made a great TV show, we made memories that will last a lifetime and I made the decision to keep the same hair cut," Calum wrote in the caption of the adorable side-by-side pics he posted.
It's kind of amazing how he still has that same hairstyle, really. But it's also sweet to see that he values him time on the show so much. Dez is such a beloved character, after all.
Click through the gallery to see some cute pics of the A&A cast together and then drop a comment below telling us what your fave episode is!