Happy Hallowee-kend! Halloween 2015 is finally here, and you know lots of stars got in on the holiday festivities by wearing over-the-top and pop culture-inspired costumes this season. Stars like Justin Bieber and Colton Haynes and groups like Little Mix and 5 Seconds of Summer have all worn funny, spooky, and silly getups to celebrate the candy-filled occasion, and all of their pics are so much fun!
Click through the gallery to see tons of your fave stars' Halloween costumes from this year. Make sure to keep checking back for more, as we'll be updating with new looks as they come in!