Dynamic duo costumes are sometimes coined overrated, but these 11 are classics, through and through.

1. Sandy and Danny from Grease

Tell me about it, stud. You can't go wrong with this classic! Just turn up the jams and grab your leather pants.

2. Catdog

Talk about a Nickelodeon throwback. This classic is one for the books, but make sure you're good friends with the person you're executing this costume with, you'll be stuck with them all night long.

3. Deflate Gate

Some say Tom Brady can do no wrong, but let's get a second look at that one. One of you needs to gear up in your best ref attire and double check that air pressure, or else Tom is back in suspension.

4. Squints and Wendy Peffercorn

"What he'd done was sneaky, rotten, and low... and cool!" A classic costume from a classic movie. Grab your bow and your glasses and make sure Squints doesn't try and pull a fast one.

5. Woody and Buzz Light Year

You've got a friend in me! Grab your best pal, your spacesuit, cowboy boots, and Andy footprints and go take on the night! Nothing better than living life by the side of your very best friend.

6. Pooh and Tigger

Doesn't get cuter than a little round teddy bear and a hyperactive tiger. Could be rather telling of your personalities.

7. Lilo and Stitch

Ohana means family.

8. Bugs Bunny and Lola - Space Jam Edition

It's the space jam. Start dunking on everyone in sight this Halloween as you and your Bugs/Lola take the court!

9. THE Dress

Black and blue or white and gold? Let me know, or let your friends decide instead.

10. Mermaid Man and Barnacle Boy

Every Mermaid Man needs their Barnacle Boy, and a Spongebob referenced costume is never out of the question.

11. Troy and Gabriella

We're soarin', flyin' there's not a costume this Halloween that you can't beat...