Are the unicorns' outfits referencing other film/tv franchises?

So the Regular Show episode "The Unicorns Have Got to Go" features a number of unicorns in different clothes.

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It's pretty obvoius that the third unicorn from the left is wearing an outfit referencing Alex DeLarge from A Clockwork Orange.

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However, I can't quite make out if any of the other unicorns are wearing outfits referencing other movies and/or TV shows. Given that Regular Show is chock full of referential humor, I wouldn't put it beyond reason to suspect that these other outfits might also be referential.

reference regular-show

Best Answer

The only one I can back up with a link and image is the 5th unicorn, who looks a lot like Gallagher and is also mentioned on the Regular Show wiki for The Unicorns:

Gallagher and 5th Unicorn

The same article also mentions that the 2nd unicorn is credited as Billy and his blonde spiked hair is exaggerated but he does basically resemble Billy Idol:

Billy Idol and 2nd Unicorn

The only other one that stood out to me is the 1st unicorn's shirt and hair resemble Sid from Toy Story, though I'm not sure about it:

Sid & 1st Unicorn

I'm inclined to think the rest are probably just generic "punk" looks (except maybe the one in underwear, though I can't think of any young characters that do that), unless it's a portmanteau of Walter White and Jesse Pinkman from Breaking Bad.