Today is a big day for Sam & Cat fans: it's both Jennette McCurdy and Ariana Grande's birthdays! Since it's also Flashback Friday, it's only natural that we're thinking about and missing the show.
It hasn't been so long since the Nickelodeon show first debuted in 2013, but it's been just enough time for the girls and their co-star Cameron Ocasio to transform their styles! In honor of this occasion, we're comparing how much each star's style has evolved.
Click through the gallery to see surprising then-and-now photos of the show's stars. Then, let us know which star you think has grown up the most by commenting below.