Today, Ariana Grande turns 21 years old, and Jennette McCurdy turns 22! We can't believe that the stylish Sam & Cat co-stars have always had such amazing red carpet fashion moments together over the course of their friendship and even share the same birthday! We would love if they worked out the current tension in their friendship and came together for a fun joint birthday party.
Click through the gallery above to see all of Ariana and Jennette's most stylish fashion moments together. Then wish both girls a happy birthday in the comments section below!