Ah, these two are cute together.

Mandy Moore (22) and DJ AM (33) (Adam Goldstein) snapped kissing in public at the Sundance Film Festival. A source says "the pair is "definitely" a couple. The source adds that the couple are "happy" and "the cutest the thing you’ve ever seen."

The couple partied together Saturday night at Park City, Utah’s Sundance Film Festival, where Moore’s film Dedication is showing.

"Mandy was performing songs from her new album, and the last song was ’Gardenia,’" a source said. "DJ was standing in the corner drinking P.i.n.k. Vodka and smiling. He was singing along. He clearly had heard the song before, and the album isn’t even out yet!"

Furthermore, Moore and AM were spotted hanging out together during the festival at the Prime Steakhouse on Main Street. The couple, along with six other friends, sat next to each other and dined for at least two hours, drinking wine, and smiling at each other.

Moore has been claiming she has been depressed for a while. I don’t buy it. Just the other day Moore’s ex Zach Braff claimed he has mild depression. I don’t believe it’s a coincidence. Moore looks pretty happy all the time, and even more so with DJ AM. Looks like DJ AM can keep those DJ fees high now that he’s bagged another celebrity girlfriend.

Just when you thought Mandy Moore and Wilmer Valderrama were headed for a reunion, now comes this: Moore and Adam Goldstein (DJ AM) are in the early stages of dating, a source close to the deejay says.

Moore (22) and Goldstein (33) have known each other for years, the source says, but started spending more time together after running into each other at a New Year’s Eve party in Miami.

"It’s really new. They’re in the beginning stages of getting to know each other," says the source. "They’re very into each other. It’s very sweet."

Moore was spotted on New Year’s Eve getting close to Valderrama, but since arriving back in Los Angeles has been keeping company with Goldstein.

She previously dated Scrubs star Zach Braff. They reportedly split last year, and in July she was spotted having a cozy lunch with another ex, tennis star Andy Roddick. Roddick said in December that they were just friends: "We’re cool."

A rep for Goldstein, who was once engaged to Nicole Richie, has no comment. Moore’s rep won’t comment on her personal life.

Previously I wrote, Goldstein has been quietly asking friends in Los Angeles to "set him up with someone who has a name," said a friend. "Basically, he knows he can charge a lot more when he is attached to a famous girlfriend. His rates have had to go way down since he split up with Nicole."

Pictured above is Adam Goldstein (DJ AM) with Richie in Santa Monica, Dec. 8, 2006.

According to the New York Post’s Page Six, DJ AM, real name, Adam Goldstein, doesn’t miss his ex-girlfriend, the anorexic and pill-popping Nicole Richie. But he does miss her fame. Goldstein has been quietly asking friends in Los Angeles to "set him up with someone who has a name," said a friend. "Basically, he knows he can charge a lot more when he is attached to a famous girlfriend. His rates have had to go way down since he split up with Nicole."

Nicole Richie met for lunch with DJ AM on Tuesday in Los Angeles after returning from a trip to her grandmother’s funeral in Alabama.