Remember theme parties in college?

They ranged from regular (blacklight) to raunchy (i.e.

Golf Pros and Tennis Hoes).

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Now, spin and cycling studios are taking the fun and outrageousness of theme party culture into the gym.

“At Flywheel, we’re always looking for ways to exceed our riders' expectations.

HIs favorite themed ride to date?

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“Boy Bands Vol.

(Check him out in the pic at left,dressed as AJ from the Backstreet Boys.)

“It was 45 minutes of pure heaven!”

(We love it!)

Seriously – most of ‘em are always looking for new tunes!

Flywheel: 22 studios nationwide (Plus 1 in Dubai and afew on cruise ships, too!)

Other rides we spotted?

A Rihanna-songs-only ride and Madonna vs. Lady Gaga setlist.

If you hit one of these up, don’t be afraid to dress up!

SoulCycle: 15 studios across NY, CT, CA (With more coming this summer!)

The country ride, as modeled above.

Personally, I jumped at the chance to squeeze into Crandall’s 80s Glam Rock ride.

“A Jay-Z vs. JT ride is probably going to attract a different group of riders than aLes Misride.

We definitely try and cater to all tastes, ages and musical genres,” Crandall added.

Cycle Karaoke atCRUNCH: locations nationwide

If you’re mic-shy, this may not be the class for you.

No doubt, you’ll be breathless as you attempt to belt Britney and still maintain your RPMs.

I found myself focussing less on my pedaling than I normally do.

Good thing or bad thing?

Well let you be the judge on that one.

Possibly the most unique ride we found?

A Harry Potter-themed class.

Yep, you read that right!

So get planning your own theme ride – anyone up for aHangover IIIone?

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Image Credit:Courtesy of Flywheel; Courtesy of SoulCycle