Charlie Sheen Tour — Sold Out in 18 Minutes!  —  Charlie Sheen has won the Internet again — his upcoming mini-tour sold out in just 18 minutes ... and now he's planning on adding extra shows.  —  We're told the time is a Ticketmaster record and that Charlie will be adding additional tour stops some time in the near future.

Jake Gyllenhaal — Bathroom Run-in at SXSW  —  Jake Gyllenhaal was the victim of a serious Guy Code violation during a screening of his movie “Source Code” at SXSW — when a guy tried to take his picture ... in the bathroom!  —  We're told Jake was in the restroom, doing his thing, when a guy snapped off a pic.

Usher Sex Tape for Sale  —  A sex tape featuring Usher and his ex-wife, Tameka Foster, is being hawked around town ... TMZ has learned.  —  TMZ was approached several days ago by someone claiming to have the sex tape.  The person sent us a short video and two photos.

PIC: See Kate Middleton's Sexy Bikini Bod  —  Kate Middleton is white hot!  —  In a series of never-before-seen photos taken while the princess-to-be vacationed with Prince William in Ibiza, Spain, in 2006, Middleton shows off her tanned and toned physique in a sexy white bikini.

PHOTOS: Kim Kardashian Tweets From Eva Longoria's Flapper Birthday Party  —  Eva Longoria threw herself a lavish birthday party Saturday night, and her good friend Kim Kardashian shared the event with her Twitter followers.  You can see Kim's Twitpics here on RadarOnline.com.

Arrest Warrant Issued for ‘Kill Bill’ Star  —  Cops are on the hunt for “Kill Bill” star Michael Madsen ... who allegedly owes around $570,000 in child and spousal support debts ... TMZ has learned.  —  According to court documents, Madsen failed to show up for a hearing in his child/spousal support case …

EXCLUSIVE PHOTOS - Jessica Biel Parties In Hollywood After Split From Justin Timberlake  —  And judging by the smile on her face, the actress had a blast out on the town last night!  Jessica Biel - who just celebrated her 29th birthday - put on a brave face Saturday night in Hollywood …

Scott Disick: I'm No Longer ‘Selfish, Self-Centered’  —  Scott Disick says giving up alcohol hasn't just made him sober - it's also made him nicer.  —  “You know, I just realized there's bigger things in the world than just being a selfish, self-centered, pr-k,” Disick, 27 …

Britney Spears: Little League Game with Jason Trawick!  —  Britney Spears heads onto the baseball diamond on Sunday (March 13) after son Sean Preston's Little League game in Calabasas, Calif.  —  The 29-year-old pop princess was joined by beau Jason Trawick for the game - Brit's ex-husband, Kevin Federline, coaches Sean's team!

Celebrity Apprentice's Richard Hatch Sent Back to Jail  —  Richard Hatch is headed back to the slammer.  —  The Survivor winner — and current Celebrity Apprentice contestant — was ordered to return to jail for nine months for neglecting to pay taxes on the $1 million prize he won as a part of the CBS series in 2000.

Two and a Half Men Is Better Than None  —  I read in the paper today that Conan O'Brien's documentary is out this weekend.  The one that chronicles the purportedly healing journey/concert tour he went on after his messy divorce from NBC.  I also read that Charlie Sheen is suing Warner Brothers …