Star sightings: Nick Cannon celebrates 30 with Mariah Carey

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After some pre-celebration scandal, Nick Cannon‘s 30th birthday weekend went off without a hitch.

Starting on Friday, the film and television actor toasted his third decade with wife Mariah Carey at New York City’s Lavo, where he blew out candles on a DJ-themed birthday cake (Cannon often books spinning gigs on the side).

The party continued the next day in Los Angeles, where Cannon took over Universal Studios for a party hosted by Nintendo Wii. The birthday boy got down on the gaming system with pal and television correspondent Kevin Frasier. TLC member Rozonda ‘Chilli’ Thomas was also counted among the revelers.

Also working the party circuit in Los Angeles was Kate Bosworth, sans beau Aleksander Skarsgard, rolling through Las Palmas on Friday evening. The following Saturday, Dustin Hoffman was spotted with his son Jake ...

... hanging out at the H.wood group’s Tea Room, just off the Hollywood & Highland entertainment complex. On Sunday, super-producer Nigel Lythgoe and Cheryl Hines supported the 7th Annual Alfred E. Mann gala to raise funds for innovative medical treatments.

Speaking of good deeds, David Arquette turned up at the swanky Soho House last week for his cause, Feeding America. Arquette honored donors Kraft Foods and Macy’s for their contributions to the charity’s Hunger Action Month 2010. ‘American Idol’ winner Lee DeWyze also saluted the bunch with an acoustic set.

Still want more? The Ministry had eyes at a recent performance of A Noise Within theater company’s launch of ‘Blithe Spirit’ starring former ‘Queer as Folk’ actor Scott Lowell. His old costars Robert Gant, Peter Paige and Michelle Clunie all showed to applaud him.

While on the topic of queer folks, Monday was National Coming Out Day, a celebration of GLBT peeps across the nation. Gay actor Chad Allen wrote a lovely missive on his coming-out story for dot429, with highlights that include his mouth-to-mouth resuscitation sessions with Alec Baldwin. Read it here.

-- Matt Donnelly
Twitter.com/MattDonnelly

Upper photos: Nick Cannon gets a DJ-themed birthday cake at his Universal Studios 30th bash. Credit: Getty Images

Lower photo: David Arquette celebrates Hunger Action Month 2010 with Feeding America at L.A.’s Soho House. Credit: WireImage