Celebrities can seem like one-of-a-kind enigmas, but the truth is, there are a plethora of famous people who are all but twinning with another celebrity, causing us to see double in all aspects of the entertainment industry.

Zooey Deschanel and Katy Perry

Enormous baby blues, deep brunette locks, and an illuminating smile are just the start of what makes it hard to discern singer Katy Perry and actress Zooey Deschanel. The incredibly similar quirky personalities and zany fashion sense only adds to the constant mix-up with these two.

Selena Gomez and Rachel Bilson

As two of our favorite TV sweethearts to grace our screens the last decade, raven-haired Selena Gomez and Rachel Bilson may be petite, but they certainly pack a big personality—and an even bigger fashion sense we love to envy.