Paris Hilton's Stalker Arrested Outside Malibu Home  —  Paris Hilton might want to upgrade her home security system.  —  Police arrested James Rainford Monday after he was seen peeking inside the 30-year-old reality star's two-story Malibu beach house.  —  Witnesses watched as Rainford …

Daniel Radcliffe Reveals His Alcohol Problem  —  Daniel Radcliffe tried to conjure his own magical powers with whiskey, the Harry Potter star admits - but the 21-year-old has been dry since last August.  —  “I became so reliant on [alcohol] to enjoy stuff,” Radcliffe, now starring in Broadway's …

Weston Cage & Wife Booked for Domestic Violence  —  TMZ has learned ... Weston Cage and his wife, Nikki Williams, have both been booked on FELONY domestic after she allegedly went after him with a bottle early this morning ... and it all happened just days after both of them got out of rehab.

Katie Holmes Flaunts Bikini Bod at Tom Cruise's Birthday Bash (PHOTOS)  —  Katie Holmes and daughter Suri Cruise had no trouble cooling off in the pool at Miami Beach's SoHo Beach House, as they celebrated Tom Cruise's 49th birthday over the weekend.  —  Both Katie and 5-year-old Suri donned cute bikinis at the surprise party.

Nathan's Fourth of July hot dog eating contest: Joey Chestnut wins 5th straight with Kobayashi out  —  Joey “Jaws” Chestnut maintained pigout primacy Monday, winning his fifth straight mustard belt in Coney Island's hot dog eating contest.  —  But there could be an asterisk next to the title …

Prince William Beats Kate in Friendly Dragon Boat Race  —  Prince William rows with his winning team  —  It started with some friendly rivalry and ended with a consoling hug from the winning prince.  —  The Duke and Duchess of Cambridge went head to head in a dragon boat race across Dalvay Lake in Canada Monday.

Jennifer Garner & Ben Affleck Celebrate a Family 4th  —  Ben Affleck, with daughter Violet, and Jennifer Garner, with Seraphina  —  This 4th of July, Ben Affleck and Jennifer Garner played the roles of a proud American family while enjoying a patriotic parade in their Pacific Palisades neighborhood.

Couples Watch: Selena Gomez & Justin Bieber Get Ice Cream in the Hamptons  —  • Justin Bieber and Selena Gomez have hit the Hamptons!  The young couple dropped over $700 at Flying Point Surf and Sports in Bridgehampton, N.Y., according to an eyewitness.

Reeling ‘Housewife’  —  Forget catty co-stars — this “Real Housewife of New York City” says she's getting screwed by her wealthy ex-husband.  —  Sonja Morgan — the saucy blond socialite who spices up the Bravo network's Big Apple franchise — told The Post that her life has been “in limbo” …

Jennifer Aniston takes risk, turns hair dark for “Horrible Bosses'  —  Charlie Day, who fights off Jennifer Aniston's advances in “Horrible Bosses,” says, “She did bite my ear ... really hard.”  —  NEW YORK —It was a moment in history where Jennifer Aniston took a stand.  —  She was going to be a brunette.

Pippa Middleton Lands Cover of U.K.'s Tatler  —  Pippa Middleton is ready for her close-up!  —  Duchess Kate's 27-year-old little sis has landed the cover of Tatler magazine's August issue.  —  Middleton's cover photo — taken at her sister's April 29 wedding to Prince William …

Zac Efron spotted kissing bikini-clad Ashley Tisdale during beachside birthday celebration  —  Just friends?  —  Ashley Tisdale and longtime BFF Zac Efron looked like a heckuva lot more during a birthday beach outing in Malibu Saturday.  —  The two “High School Musical” …