Looking like the hottest American Gladiator ever, AnnaLynne McCord rocked elbow and knee pads with her green bikini to shoot some sort of ridiculous sexy jousting scene on "90210" in L.A. yesterday.

Who wouldn't want to do battle with her?

Showing off his God-given talents, "90210" star Trevor Donovan was once again spotted on the set of the TV show sans shirt on Tuesday.



Sadly, Trevor -- and his pecs, abs and biceps -- will be leaving the series this season.

A 32-year-old high school student never looked so good.

Gabrielle Carteris turning 50 really shook the TMZ newsroom to its core -- 'cause if Andrea from "90210" is aging that quickly ... what's happening to us? Please ... don't answer. 



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Gabrielle Carteris -- who was 29 when she began playing 16-year-old Andrea Zuckerman on "Beverly Hills, 90210" -- is celebrating her 50th birthday today.


And now the answer to the eternal question, why do they call her Ahnnnnndrea?

'90210' fox Jessica Lowndes celebrated her 22nd birthday in Vegas this weekend by posing with some goodies out on display.


Yum.

Christine Elise is famous for playing Jason Priestley's crazy girlfriend Emily Valentine on the original "Beverly Hills, 90210." Guess what she looks like now!

In the '90s, Vincent Young became famous playing Noah Hunter -- one of Tori Spelling's boyfriends -- on "Beverly HIlls, 90210." Guess what he looks like now!

"90210" star Shenae Grimes, 20, showed off her sexy spandex granny panties while in Hawaii this weekend.


9021-no, no, NO!

Trevor Donovan has struck it big playing Teddy on the new "90210" -- but a credit card company claims he owes them a big chunk of change from before he became famous.


According to a lawsuit filed Monday, Donovan applied for and received a credit card from Wells Fargo back in 2006. As of July 2009, the card company claims Donovan's tab is $42,469.69 ... which has gone unpaid.

The debt has changed hands and now a company called Investment Retrievers is trying to collect the money ... plus interest and attorneys' fees.

A rep for Donovan could not be reached for comment.

Matt Lanter -- who apparently stars on "90210" -- proved how smokin' his bod is by going shirtless underneath a fireman uniform in L.A. on Wednesday.



This show is full of flaming hot dudes.

"Twilight" hunk Kellan Lutz and his smokin' hot "90210" girlfriend AnnaLynne McCord soaked their smooth, ripped and hairless bodies in the waters of St. Maarten this weekend.



Hopefully they used protection.