Good for Kelly Osbourne. People.com tell us that Breakup? What breakup? It looks like Kelly Osbourne took mom’s advice and picked up the pieces.

The newly single Osbourne, 25, who recently split from her British model fiancé Luke Worrall, hit Sin City and partied with friends Thursday night to celebrate her best friend Blake Wood’s birthday.

The first stop during the weekend festivities? Dinner at Las Vegas’ Union Restuarant. The group noshed on lobster, steak and king crab tacos before the heading to Haze nightclub to catch a performance by rapper Common.

“She seemed really happy and not phased by the breakup,” says a source who saw her at Haze. Osbourne and her pals danced and took lemon drop shots before leaving the club early Friday morning.

Hope she has a fun weekend planned, she deserves it!