Monday

Couples Watch: Hilary Duff & Mike Comrie, Eric Dane & Rebecca Gayheart

07/06/2009 at 06:00 AM EDT

• Lovebirds Hilary Duff and Mike Comrie, celebrating a friend's birthday at LAVO Italian Restaurant inside Las Vegas's Palazzo Resort and Casino with a huge crew. After eating dinner (including giant Kobe meatballs), the group ventured to the upstairs nightclub where they wasted no time dancing to DJ Five's set. The group drank champagne – eight bottles of Cristal! – as the evening continued. The next day, Duff and Comrie hung at a poolside cabana at TAO Beach, enjoying their friends' company over lunch and drinks.

• Eric Dane and Rebecca Gayheart, walking along the Seine in Paris toward the Eiffel Tower. Along the way they stopped at the Musée d'Art Moderne de la Ville de Paris, where Gayheart posed playfully beside the outdoor statues. Next up on their Parisian walking tour, the two stopped by the Trocadero, snapped pictures of the Eiffel Tower and grabbed ice cream before heading to a shaded café for drinks.

• Tyra Banks and boyfriend John Utendahl, ordering steak and creamed spinach during dinner at STK Los Angeles. The couple was extremely friendly with their server and spent their meal deep in conversation, a fellow diner tells us.

• Ben Harper, accompanying wife Laura Dern for an afternoon trip to Nail Spa Lane on Santa Monica's Montana Avenue – with their daughter Jaya, 4, son Ellery, 7, and a nanny in tow. And Harper wasn't just sitting back: The musician picked out shades of polish for his daughter and wife (who opted for orange), and he playfully joked with the kids. Harper even took a seat in a massage chair beside Dern and chatted with her for a bit. Soon, Harper collected their kids and headed for home, leaving his wife to finish her pedicure (and relax) solo.

• Chelsea Handler, taking boyfriend Ted Harbert along as she picked out clothes at Beckley, an L.A. boutique. The E! host bought some jeans, before leaving to buy rugs at nearby Mansour.

• By MARK DAGOSTINO, JENNIFER GARCIA and PETER MIKELBANK

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