Las Vegas: Where Lauren Conrad, Matthew Morrison Love to Party

Lauren Conrad and Matthew Morrison Credit: Steven Lawton/FilmMagic; Steve Granitz/

- Lauren Conrad celebrating her 26th birthday at Hyde Bellagio

- Matthew Morrison laughing with 10 buds at Azure at the Palazzo hotel

PHOTOS: How stars are spending their summer vacations

- Bachelor sweethearts Ben Flajnik and Courtney Robertson packing on the PDA at Wet Republic

- Kourtney Kardashian shopping for baby clothes at The Cosmopolitan

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- Jill Zarin eating two chocolate covered roses at Sugar Factory

- Hugh Hefner celebrating his 84th birthday at the Palms Casino Resort

PHOTOS: Other Las Vegas A-list hangouts

- Marcia Cross celebrating her birthday with pals at Venus Pool Club and Pure Nightclub