Diane Kruger and Joshua Jackson Check Out Pricey Jewelry

Diane Kruger and Joshua Jackson Philippe Abergel

Diane Kruger and boyfriend Joshua Jackson checking out exclusive pieces of jewelry from Jacob & Co during a preview of the Splendors of Nature exhibition at the Hotel de Paris in Monaco.

Jason Stathom cooling down with some ACTIVATE Water during a house party in Malibu, Calif.

Julianne Hough and Josh Duhamel, joined by his wife Fergie, hosting a 4th of July party for the cast and crew of their film Safe Haven, including the director Lasse Hallström, in Southport, N.C.

Jay Sean and Cobra Starship performing their hit songs at Z100's Jingle Ball Launch Party 2012 in NYC.

Usher and Ciara playing around with a bottle of Remy Martin V at the BET Awards after party at Playhouse in Hollywood.

PHOTOS: See how stars spend their day

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Flo Rida and eight friends drinking Cristal while listening to DJ Scram Jones at Stash in NYC.

Lauren Graham and musician Josh Charles sipping martinis with two others at Strip House in NYC.

Denzel Washington enjoying old school tunes during the Hennessy VS and Essence birthday celebration for Kevin Hart in New Orleans.

Derek 'Fonzworth Bentley' Watkins and his wife Faune Chambers Watkins celebrating their two year anniversary at the Malibu ocean front owned by David Geffen before dining at Giorgio Baldi in L.A.

— Actor Stephen Dorff partying with Tara Reid and her new boyfriend at Nikki Beach in St. Tropez.

Mick Boogie and Silver Medallion spinning during a birthday party for Kelly Brady while Eddie The Gun hung nearby at the DL rooftop in NYC.

PHOTOS: See where the stars chill in NYC

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Nikki Reed wearing new leggings from The Girls Apparel during a run with her hubby Paul McDonald in Studio City, Calif.

Pink promoting her latest single "Blow Me (One Last Kiss)" during an intimate performance at the Mix 104.1 Studios in Boston, Mass.

Chace Crawford enjoying pitchers of sangria and light bites with friends at Jimmy at The James in NYC.

Kelly Bensimon cooling down with Mulberry Project Bespoke Cocktails at the Talent Resources 3rd Annual Charity Polo Classic in Southampton, N.Y.

Bachelor boys Bob Guiney and Chris Harrison trying on New Era caps at the Fifth Bridge Celebrity Kickoff Party Presented by XYQ Technology at the Playboy Mansion in L.A.

Robert DeNiro sitting down to one of the final performances of Memphis on Broadway at the Shubert Theater in NYC.

Dax Shepard laying low while enjoying a dinner of chicken thigh with black truffles at Paris Club while promoting his film Hit And Run in Chicago.

Frank Ocean enjoying beats spun by DJ M.O.S. while partying with friends at Mister H in NYC.

Bono and wife Alison Hewson taking the family out for a performance of The Beatles LOVE by Cirque du Soleil at The Mirage in Las Vegas.

PHOTOS: Check out where A-listers take their families

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Jessica White watching Jared Evan perform at Avenue A Soundcheck for 'The Fourth Chapter' launch party at Double Seven in NYC.

— Actress Sanaa Lathan grabbing dinner with friends at Mercadito in Chicago.

Christina Aguilera with boyfriend Matt Rutler doting over Aguilera’s son Max while eating at Restaurant 1833 in Monterey, Calif.

Zoe Saldana hosting a celebratory dinner with director Guillaume Canet at The Vinatta Project after wrapping her new 70's thriller Blood Ties in NYC.

Niecy Nash and her husband Jay, celebrating his birthday at Villa La Estancia in Nuevo Vallarta, Mexico.

Michael Douglas checking out Victorinox Swiss Army Travel Gear's new Spectra Hardside Upright luggage at the 11th Annual Michael Douglas & Friends Celebrity Golf Tournament in the Bahamas.

Phillip Seymour Hoffman sitting in the audience during a special Indiewire & Fox screening of Margaret with director Kenneth Lonergan, Mark Ruffalo and Matthew Broderick at Landmark Sunshine Cinema in NYC.

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