VIDEO: Revenge Of The Nerds: Megan Fox Hot For Conan O'Brien

Sexy Megan Fox revealed to Conan O'Brien her secret crush: him!

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"I like guys that are really smart and are really funny," the sultry 23-year-old told the talk show host Thursday. "I have an affinity for guys who are really tall with red hair."

"I just blacked out," Conan joked.

Fox continued: "I have always -- not to embarrass you, but I did grow up watching your show ... I've had a crush on you for a long time."

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Fox said the biggest two turn-ons are Conan's string dance and his falsetto Irish singing voice, which spurred the blushing O'Brien to break out in a chorus of Danny Boy.

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Said O'Brien: "Hope the wife doesn't watch this one -- let's take a break!"

Jennifer's Body, which also features Adam Brody, hits theatres Sept. 18.  Fox will host the 35th season premiere of Saturday Night Live on September 26th; U2 will perform.

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