Enter the #AOLcostumesweeps for a chance to win the ultimate Halloween prize!

The AOL.com team is excited for Halloween -- who doesn't love a holiday centered around ghoulish fun and candy?

In honor of the spooky season, we're rounding up your best throwback Halloween costume photos! From last year's outstanding costume to your favorite from a different decade, you can submit your throwback Halloween costume pictures with the hashtag #AOLcostumesweeps on Instagram or Twitter!

You can enter by tagging your Halloween costume photos with the hashtag #AOLcostumesweeps for a chance to win a Party City gift card to spend on decorations, costumes, and candy for Halloween!

Follow us on Twitter and Instagram as well to see if you're featured on our social channels and don't miss our Halloween page, the ultimate destination for everyone going back to school in your life.

Official rules:
• Open to legal residents of 50 United States and the District of Columbia who are 18 and older.
• To enter, tag a photo on Twitter or Instagram with the hashtag #AOLcostumesweeps
• Sweepstakes begins on October 26th at 3:00PM EST and ends on October 31st, 2015 at 5:00PM EST.
• 1 winner will be selected in a random drawing at the end of the sweepstakes.
• 1 randomly selected winner will win a Party City gift card with an approximate total retail value of $250.00.
• By entering, you confirm that you have read and agree to comply with the Official Rules.