Jessica Alba by Eric Charbonneau/ and David Beckham by Barry King/ Jessica Alba by Eric Charbonneau/ and David Beckham by Barry King/

Well, tickle me' Elmo, but were the guest stars on Sesame Street always this hot? I just remember Mr. Hooper and all those married couples in leisure suits.

The seminal kids' show launches its 39th season on Aug. 11 with a veritable parade of hotness: Jessica Alba, David Beckham, Heidi Klum, Neil Patrick Harris, Sandra Oh, Jenny McCarthy and Dolphins defensive end (and Dancing With the Stars runner-up) Jason Taylor will attempt to help the nuggets with their reading, writing and arithmetic, but will mostly be on hand just to kick their sexual development into gear. Can you spell H-O-R-M-O-N-E-S, kids?

"The Street" will also include some "legitimate" guest stars. Will Arnett, who knows a thing or two about playing an "illusionist," will portray a new character, Max the Magician, a prestidigitator ( look it up) who teaches kids math with his "tricks." Feist will appear, and will presumably sing that "1 2 3 4" song that lodged in my brain for much of last year after it appeared on an iPod commercial. NBC anchor - and SNL vet - Brian Williams will show up to teach kids about the news.

This season the show will also introduce its first Indian-American character, Leela, who will work at the Street's new Laundromat, sharing her heritage and culture through singing and dancing. Plus, a new segment will trace the adventures of a Claymation Bert and Ernie. But, oh, the hotness, my friends! - Mickey O'Connor