MIKE&TRICIA'S HOLLYWOOD DIRT REPORT

THE LADY GAGA WIPE OUT VIDEO: LADY GAGA took a pretty hard tumble off her piano during her show in Houston Sunday.

But ever the pro, she got back up and didn't miss a note -- even after appearing to bang her head against the ground or the piano as she landed, no less ...

KIM K. COSMO COVER CREATES KONTROVERSY: The largest Armenian group in the U.S. has put Cosmo on blast over their KIM KARDASHIAN cover of the Turkish version of Cosmopolitan magazine calling it "disrespectful to Kim and to all Armenians."

The group, as well as Kim herself, is particularly concerned that it comes the same month the Armenian genocide is commemorated. Between 1915 and 1918, more than one million Armenians were killed under the Ottoman Empire, which became the modern republic of Turkey. (--The Kardashians are of Armenian heritage.)

Kim says she never gave the OK to appear on the Turkish edition, and a "source" says "She's upset about it obviously, but it was an honest mistake." The insider adds,"This one just slipped through the cracks. I can't imagine that they would have done this on purpose. Kim has a really great relationship with 'Cosmo'."

KIRSTIE ALLEY HAS ANOTHER 'DANCING' MISHAP: KIRSTIE ALLEY and her partner MAKS had another "mishap" during their performance on "Dancing with the Stars" last night. This time, Kirstie's shoe came off during their waltz!!! She managed to get it back on without disrupting the dance much.

You can't see it come off, but you can see her putting it back on at about the :35 mark ...

KENDRA'S NEW SEX TAPE: The new issue of Playboy featuring KARINA SMIRNOFF from “Dancing With the Stars” on the cover, and posing nude inside will be out this week, and as you may have heard, ABC was not happy citing concerns it could “soil” the image of the family show.

Well, imagine how they’re going to feel about Vivid Video rushing out KENDRA WILKINSON’S second sex tape to take advantage of the huge audience watching her on DWTS!!! This new one is said to features Kendra with the guy from the first one (an ex-boyfriend), and one of her girl friends. A source who’s seen it says ‘nothing is left to the imagination.’

Back in May of last year, Kendra threatened to sue when Vivid released her first tape -- made 5 years ago when she was 20. She claimed it caused her “embarrassment and humiliation” but stopped complaining after they paid her $700,000 and gave her a cut of the profits.

BABY NEWS: TORI SPELLING and hubby DEAN McDERMOTT are expecting their third child. Tori announced the news via Twitter yesterday: "I know there's been a lot of speculation, so I wanted everyone to hear from me. It's official. [We] are PREGNANT!"

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2.) ROD STEWART'S daughter Kimberly has been fetused by BENICIO del TORRO. The two are not a couple and are not dating, but, according to his rep, del Torro "is supportive" and both are "looking forward to the arrival of the baby."

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3.) TINA FEW shows off her baby bump outside the Ed Sullivan Theatre in New York City yesterday following a taping of the Late Show With David Letterman ...