Sophie Monk heads to Yoga Works in Hollywood on Sunday.

Just last week, Sophie and Ryan Seacrest were spotted out on a date at an LA sushi restaurant.

“She moved right on from Benji months ago and is so over that now,” a source said.

“[Seacrest and Monk] have mutual friends who thought they’d get on together and they did. There are plans for a second date, it’s just a matter of when.”

10+ more pics of Sophie yearning for yoga…

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American Idol host Ryan Seacrest and Australian singer/actress Sophie Monk were spotted out on a date at an LA sushi restaurant on Tuesday.

Ryan, 33, and Sophie, 28, tried not to be photographed together after dining at the restaurant for over two hours before heading home.

Sophie recently split from her fiance Benji Madden of Good Charlotte, who is now dating heiress Paris Hilton.

More pics inside of the pair trying to dodge the paparazzi…

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Madden twin girlfriends Nicole Richie and Sophie Monk attend the phoot call ahead of tomorrow’s MTV Australia Video Music Awards 2007, at The Hilton’s Zeta Bar on Saturday in Sydney.

The Simple Life star and Aussie actress go on double dates with their respective Good Charlotte bandmate boyfriends. Nicole, 25, is dating Joel Madden, 27, and Sophie, 27, is dating Benji Madden, 27.

More pictures of Nicole and Sophie inside… More Here! »

Good Charlotte frontman Joel Madden and twin brother bandmate Benji catch a flight from Los Angeles to NYC on Sunday morning.

The Madden twins, 28, will be promoting their new album Good Morning Revival on this afternoon’s episode of MTV’s Total Request Live and tomorrow’s edition of The CBS Early Show. The US rockers entered the Billboard charts this week at No. 13.

Joel just got a haircut over the weekend, accompanied by Simple Life star girlfriend Nicole Richie.

Brother Benji is currently engaged to Australian singer/actress Sophie Monk, who dropped him off at LAX airport yesterday in a Lexus.

Pictured below: Joel and Benji pose for a portrait in Studio City, Calif. on Saturday, March 10.

Sophie has been Nicole Richie’s latest BFF (they’re dating the Madden twins). The 27-year-old Aussie actress was shooting Snoog Dogg’s latest music video spotted at Dover Heights, Bondi Beach and the exclusive Ruby Rabbit nightclub in Sydney, Australia last week. Lots more pictures of Sophie in Australia after the jump — CLICK HERE!

Sophie is engaged to Good Charlotte rocker Benji Madden (Nicole’s dating Hilary Duff’s ex, Joel). He proposed to her on Christmas Eve in Australia with a Neil Lane platinum diamond ring.

Note: So sorry about dropping the ball on this one, guys. No one guessed the correct “Celebrity Guess Who?” answer but I should have provided the answer much, much faster. Anyway, it was Sophie Monk!

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Nicole Richie and Aussie actress Sophie Monk have been joined at the hip as of late, going on double dates with their respective Madden twin boyfriends. Nicole, 25, is dating Joel, 27, and Sophie, 27, is dating Benji, 27. Earlier this weekend, Nicole and Joel were kissing and hugging each other outside of LAX airport while Sophie and Benji were doing likewise.

If you didn’t know: Joel Madden is Hilary Duff’s ex.