10. Smallville and Life Unexpected
The Daily Planet could start doing podcasts and bring in Portland radio personality Cate Cassidy to debate current events with Clark after Lois freezes up on the air. A love pentagon ensues, leading Lois to try to lure Lux to the dark side and Baze and Ryan to pool their money to buy some Kryptonite online.

9. Hellcats and Supernatural
The titular Hellcats could wake up one morning to find that they've somehow been transformed into literal cats from hell. Sam and Dean are called in to send them back to the feline underworld, but the task proves more difficult than they imagined when the hellcats won't stop meowing evil cheers and breaking into Satan backflips all over everywhere as an evasive technique and are too adorably evil to kill.

8. Gossip Girl and Nikita
After another suspicion of Rufus's infidelity, Lily could decide she's had enough cheating scares and hire elite sexy assassin Nikita to try to seduce him -- and kill him if he takes her up on her tawdry offer. Rufus can't resist Nikita's skeletal charms, but before she can kill him, Lily, Dan and Vanessa barge in with a change of heart, yelling and buzzing around her like they do. After several hours of this, Nikita finds them all so insufferably annoying that she kills them all and saves the show.

7. Vampire Diaries and Smallville
Investigating reports of vampire attacks, Lois Lane could travel to Mystic Falls to write a "news" article for the Planet, in between covering world politics. When she actually finds vampires, Clark arrives in the nick of time to remind everyone that Smallville did a vampire story already, way back in Season 5, and it was terrible.

6. 90210 and Supernatural
In the storyline that eternally refuses to die, that hobo Annie ran over 47 years ago could reanimate as a zombie, and Sam and Dean would have to figure out how to kill it, in a high school full of inordinately attractive teens, without Dean getting arrested for anything he'd have to register for in the future.

5. America's Next Top Model and Nikita
Still trying to bring down the organization that trained her to be a fashionable assassin, Nikita could go undercover at an ANTM audition to neutralize a target, but her plan would be disrupted when Tyra rejects her from the modeling competition for being too skinny. Seriously, Maggie Q is like a skeleton, in case we haven't mentioned it before.

4. 90210 and Life Unexpected
Tired of the Portland rain, Cate and Ryan could move to Beverly Hills and have Lux transfer to Beverly Hills High, where a topless photo of her is immediately distributed via text message. To be near his daughter and the woman he secretly loves, Baze buys the Peach Pit and turns it into a pub, simply called "The Pit."

3. Gossip Girl and Smallville
Chuck Bass could buy the Daily Planet and immediately set about trying to seduce both Lois Lane and Clark Kent. He ultimately succeeds, but only after sleeping with Kara, Tess, Zatanna, Chloe, Ollie, Chloe and Ollie, Chloe and Kara, the Justice Society and Brainiac twice.

2. The Vampire Diaries and America's Next Top Model
After spending some time terrorizing everyone in Mystic Falls after being away for so long, Katherine could decide to travel to New York to visit her maker: Andre Leon Talley. They eat Tyra, Nigel photographs it and they make the cover of esteemed couture webzine Fashion Vampires.

1. One Tree Hill and Supernatural
Sam and Dean could hear reports of a TV show that refuses to die and head to North Carolina to kill the overly dramatic group of twentysomethings. It is unclear whether they're vampires or zombies or merely phantoms of their former selves, but the brothers don't really care as long as they get paid.

What CW shows would you like to see cross over? Let us know below!

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