Halloween has finally arrived, which means it's time to officially break out the costumes, trick-or-treat, and get ready to party.

Natural procrastinators may have waited until Thursday to worry about what costume they will wear. Going to the stores and combing through what's left on the shelves could be a waste of time at this point so a quick and easy DIY may need to be in order.

However, that doesn't mean it can't be creative or even inspired by a celebrity. Some celebrities are easy to emulate, even without months of planning the perfect costume. Enstars compiled a list of the 9 easiest celebrity-based do-it-yourself costumes that are perfect for a last minute procrastinator.

Be sure to scrowl through our photos for tips on how to pull off these great looks:

1. Sheldon and Amy from 'The Big Bang Theory' a.k.a. 'Shamy'

2.  Kate Middleton

3. Justin Bieber

4. Miley Cyrus

5. North West

6. Sue Sylvester from 'Glee'

7. Tom Cruise in 'Risky Business'

8. Kim Kardashian

9. Mark Zuckerberg