When it comes to Halloween, we're sure you've seen your fair share of celeb-inspired costumes or perhaps costumes based on the color of your hair. Yes, there are plenty of ideas out there, but in our busy lives, it's easy to leave things until the last minute. If you're like us and still on the hunt for that perfect outfit idea to get you into the spirit, consider this your ultimate last-minute Halloween costume guide. Each of these ensembles is easy to throw together in a pinch, we promise.

Even better, all of these wicked-cool looks start with one piece you already own: a pair of jeans.

That's right—each of these looks centers on the piece you wear every day (or close to it). From '70s-inspired looks to current plays on pop culture, here are our top seven Halloween costumes you can wear with your baby blues. Keep scrolling to find your next Halloween costume now.

For the ultimate '70s look, channel sporty-cool icon Farrah Fawcett.

Let out your inner rocker with this easy-to-assemble costume.

You can dance however you please in this ensemble.

Sister, Sister recently debuted on Netflix, so honor your favorite twins with a Halloween costume this year.

Want to be part of the 90210? It's easy!

You'll be ready for a wild ride in this look.

Rock out in this ridiculously easy look.