MYSTERY RIDER

Who was the babe on the back of GEORGE CLOONEY's bike in Laglio, Italy, June 23? The photographer says it's go-to gal Krista Allen, but Clooney's rep had no comment.

LEO RAISES THE BAR

For LEONARDO DICAPRIO and BAR RAFAELI, meeting the parents is a jet-setting affair. After the model spent a week in Barcelona hanging out with DiCaprio's visiting mom and grandma, it was his turn to meet and greet during their recent jaunt to Vegas. Following some Sin City fun on June 24—poker and partying at Light Nightclub's fourth-anniversary bash—the actor treated Bar and her father to Le Rêve, a show at the Wynn. "Leo looked like he really wanted to impress her dad," says an observer. "He treats her like a princess."

STILL STRONG

Did JUSTIN TIMBERLAKE really dump CAMERON DIAZ? Don't believe the hype! "They are very much together," a source tells PEOPLE. And although they have recently been partying separately, Diaz, 33, and Timberlake, 25, certainly looked cozy at LAX airport June 25 heading to Barcelona, where Timberlake is shooting a video for his next album, FutureSex/LoveSounds.

FAST TAKES

You're squired! Season 1 Apprentice winner BILL RANCIC and E! correspondent GIULIANA DEPANDI (above) are dating, Rancic's sister Karen Soenen tells Insider: "They met at the last Apprentice finale. She interviewed him."

JENNIFER ANISTON and VINCE VAUGHN just returned from a weeklong respite at Joe Francis's Puerto Vallarta estate, Casa Armara, a source tells Insider.

Say it with steel: For their wedding OLIVER HUDSON gave bride ERINN BARTLETT a Lil' Mynx stripper pole.

JOSH GROBAN and JANUARY JONES are "taking a break" after three years of dating, his rep confirms to Insider. A rep for Jones—who partied with LUKAS HAAS in Vegas June 24—said, "I don't comment on my client's personal life."