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Making for the perfect way to spend the weekend, the stars turned up in full force for the "Yo Gabba Gabba! Live! There’s A Party In My City" show in Los Angeles, California on Saturday.

Held at Nokia L.A. Live, musician/magician DJ Lance Rock took the stage while welcoming Nicole Richie and Joel Madden – who were with children Harlow and Sparrow – onstage as super-secret special guests.

With all of the Nickelodeon Jr. characters partaking in the show, Brobee, Foofa, Muno Plex, Muno and Toodee kept the little ones laughing throughout the entire one hour extravaganza.

Watching on from the audience were Tinseltown stars and their kiddies including Jessica Alba and Honor, Gwen Stefani with Kingston and Zuma, Jaime Pressly and Dezi James, Jack Black and son Thomas, as well as Milla Jovovich and daughter Ever Gabo Anderson.

Spotted out on Thursday (November 25), the former "Friends" star donned a cute purple two-piece as she lounged poolside and mingled with her travel companions during the south-of-the-border Thanksgiving getaway.

Aside from her post-work travels, Jen continues to be a regular in the gossip headlines for alleged new romances and crushes.

Most recently, the brunette beauty is said to have a "huge crush" on Joaquin Phoenix after meeting the actor at the premiere of his movie "I’m Still Here" back in August.

Telling that Jen is trying to setup a "business" meeting, a source told Grazia magazine, "He’s single, funny and handsome, and she likes that he is a bit kooky. There have been calls, texts and emails to set up a meeting – ostensibly to cast him in a new movie project – but apparently Jen just wants to spend more time with him because he’s her huge crush."

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