Today’s celebrity rundown (11 photos)

Jennifer Lopez celebrated her 43rd birthday with friends and her boyfriend Casper Smart in NYC yesterday. That cake is pretty awesome.

A toy manufacturer sued Lady Gaga for $10 claiming the singer backed out on a deal. That’s a lot of cash. Find out more at the source.

Ashley Greene told NYLON magazine that she kept her waitress job after booking ‘Twilight.’

“I was working at the Belmont Cafe in L.A., got the call, and two weeks later was rehearsing. Right when I was cast, my IMDb STARmeter went through the roof — all of ours did, and we hadn’t even done anything yet! I asked my boss if I could have my job back after the shoot. He was like, “I don’t think you’ll need it but OK.”

Demi Moore is getting back to dating younger men again. She’s still got it. -source

Kate Hudson signed on to appear in the Fall 2012 ad campaign for Ann Taylor.

Kate said, “Fall is always my favorite season. I love layers and Ann Taylor is really going for more color and prints and fashion and stepping out of the box for their company.”

Taking over Ashton Kutcher’s position, Katy Perry is the new face of Popchips snack company. The singer also signed on to be a creative partner and investor.

Ed Helms showed off his feminine side with pink and purple hair curlers on set of ‘They Came Together.’ He is starring alongside Paul Rudd and Amy Poehler in the film.

Zach Galifianakis said ‘Good Morning America’ today to promote his new film, ‘The Campaign.’ Zach explained that there was plenty of improv while filming with Will Ferrell.

“With Will, yes. To keep it fresh… I mean, it gets a little bit boring to say the same things over and over again so you try to change it up. For comedy, it’s very helpful that way.”

98 Degrees is reuniting after 10 years! They’re currently working on new music and will be performing on the ‘Today’ show. The 90s band includes Nick Lachey, Drew Lachey, Justin Jeffre and Jeff Timmons. -source