Today in Tweet Beat, Kirstie Alley has lost 50 lbs., Terry Richardson posts a photo of himself at therapy, and Steve Martin is getting the hang of Twitter.

Photo: Me at terrapy yesterday. http://tumblr.com/xzgjb2qbsless than a minute ago via Tumblr

Terry Richardson
Terry_World

Reading other people's Tweets, I think I'm getting the hang of it now. 9:23am: cleaning toenails.less than a minute ago via web

Steve Martin
SteveMartinToGo

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Hotel bathrobe got me feeling like a king!less than a minute ago via web

Kanye West
kanyewest

At Oktoberfest in Munich, Germany with @KeepinUpWKris fun times! http://twitpic.com/2qwydfless than a minute ago via Twitpic

Kim Kardashian
KimKardashian

I'm sitting in a Starbucks parking lot ... And I think I just saw Brad Pitt fall off his motorcycle! ... TWICE !less than a minute ago via qStatus

Arsenio Hall
ArsenioOFFICIAL

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God I love Ani DiFranco. made myself a mix of her songs 1995-style. Now to JCrew for a merino sweatervestless than a minute ago via Twitter for BlackBerry®

Mindy Kaling
mindykaling

Lady Gaga opposing DADT. Why take her advice on military? If she had her way, can you imagine what the uniforms would look like? #ftrs #tcotless than a minute ago via web

Fred Thompson
fredthompson

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I am sitting here with @officialkathyg talking about the awfulness of Don't Ask Don't Tell policy for our wonderful service men and womenless than a minute ago via Seesmic Desktop

Jane Seymour Fonda
Janefonda

Little girl spilled her chips at LAX and I am watching her eat them, one by one, off the rug. Her Mom doesn't seem to care. #chicless than a minute ago via ÜberTwitter

Andy Cohen
BravoAndy

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The kid who ate the chips off the filthy LAX rug just boarded my flight. Searching my seat for old nuts to feed her midflight #AmuseBoucheless than a minute ago via ÜberTwitter

Andy Cohen
BravoAndy

Bonus Pic: Why do rappers always talk about buying bottles?? Must not have it at the CRIB.. Step your game up. http://twitpic.com/2qwwevless than a minute ago via Twitpic

ICE T
FINALLEVEL

The gallery space returned to peace when I wrapped a bunch of celeries instead.less than a minute ago via SocialOomph

Yoko Ono
yokoono