EXCLUSIVE: New Jesse James Mistress Revealed — Read Their Email Correspondence  —  Jesse James has led a secret life of cheating on his wife Sandra Bullock, and now RadarOnline.com has exclusively obtained emails between Jesse and mistress number 5, a sexual relationship that went from obsession to legal action.

Conan Treats Lopez with Royal Respect  —  TMZ has learned how the deal went down with Conan O'Brien, George Lopez and TBS, and Conan made it clear — he didn't want anyone to endure the same shabby treatment he got at NBC.  —  Sources tell TMZ the idea of bringing Conan to TBS was hatched by Turner's entertainment chief Steve Koonin.

Heidi Montag's Bikini Pic Scores Her $10K  —  Heidi Montag showed off her new F-cups (seriously) this weekend by hamming it up for a Las Vegas bikini photo shoot.  Think she did it for the good of the nation?  Wrong.  My sources tell me Miss Montag was paid $10,000 for the busty shoot.

Josie Duggar Back in Hospital  —  After celebrating the release of their 19th child from the hospital last week, Jim Bob and Michelle Duggar had to take her back to Arkansas Children's Hospital in Little Rock on Thursday at 3 a.m., when her vital signs began to drop unexpectedly.

Reggie to Paris: I'm Single, Let's Party!  —  Reggie Bush has been single for less than a month — and he's already partying with Kim Kardashian's arch-enemy ... Paris Hilton!  —  Bush and Hilton lets the sparks fly at Tao nightclub in Vegas this weekend — we're told Hilton's man, Doug Reinhardt, was nowhere to be found.

Steven Seagal Sued for Sexual Assault,Trafficking  —  Steven Seagal is accused of trafficking women for sex, according to a lawsuit obtained by TMZ.  —  A 23-year-old former model claims she interviewed with Seagal last February for the position of executive assistant.

Kitty Kelley's new Oprah bio has plenty to talk about  —  WASHINGTON — Celebrity chronicler Kitty Kelley is doing what she often does when one of her unauthorized blockbuster biographies is about to come out.  —  She's at her Georgetown office showing a visitor a wall of file cabinets filled …

Mario Lopez wants ‘Extra’ beauty  —  Mario Lopez is so body-obsessed, he persuaded his beautiful girlfriend, Courtney Mazza, to undergo rigorous personal training and encouraged surgery to get her into even better shape.  —  Sources say friends of Mazza are concerned that the image-conscious …

Ryan Phillippe: “I'm Tired of Getting S*** on” Over Reese Split  —  When a rep for actress Abbie Cornish told UsMagazine.com in February that she had broken up with Ryan Phillippe, at least one person was surprised: Ryan Phillippe.  —  “I have a new rule: not to date anyone who has a publicist …

‘Modern Family’ Cast Will All Compete For Supporting Emmys After Ed O'Neill Gesture  —  EXCLUSIVE: When Modern Family star Ed O'Neill submits himself this week for Emmy Awards consideration, he will do it in the Supporting Actor category, despite being the biggest name star on the hit ABC sitcom.

Jason Alexander & Christina Hendricks Show Off Their Figures (PHOTOS)  —  WHAT'S YOUR REACTION?  —  Jason Alexander and Christina Hendricks showed off their enviable figures Sunday night at the Annual Academy of Magical Arts Awards in Los Angeles.  —  Alexander, a new Jenny Craig spokesman …

In the May Issue: Robert Downey Jr.  —  On advice for practicing Wing Chun, a martial arts discipline:  —  “Seriously, don't worry about looking like an idiot.  It's like life: The less self-conscious you are, the better it works.  And remember, lots of ice and Advil afterward.  Trust me on that one.”

Heather Locklear Breaks It Off With Jack Wagner  —  Sad!  —  Heather Locklear is rumored to have called it quits with boyfriend and former Melrose Place co-star Jack Wagner, realizing the relationship was taking away time with her daughter Ava.  —  An insider reveals:

Ahh!  Lovers K-Stew & R-Patz Reunite in Budapest for Her Birthday!  Exclusive Details!  —  The Twilight lovebirds have had a long 42 day separation since they last saw each other!  Must have been hard!  —  Looks like K-Stew and R-Patz were thrilled to see each other again after one of their longest separations ever.

‘Jersey Shore’ Brings Seaside Heights A Fiscal Fist-Pump  —  'We can't even calculate the economic benefit,' local business exec says.  —  Seaside Heights, New Jersey, has beaches not heating up until after Memorial Day weekend begins.  —  All that has changed since the emergence of …

NBC Picks Up ‘Law & Order: LA’ For Fall; ‘SVU’ Cleared For 12th Season With Cast; Original ‘L&O’ Looks Good For Record 21st  —  EXCLUSIVE: Dick Wolf is once again looking to expand his Law & Order empire to 4 series on the air.  Sources tell me that NBC has picked up Law & Order: Los Angeles (aka LOLA) with a 13-episode order for fall.