Adam Brody Stars as Wife Leighton Meester's Deadbeat Ex-Boyfriend on Her Show 'Single Parents'

Fans ofThe O.C.andGossip Girlmight want to sit down for this one. Adam Brodyguest-stars on his wifeLeighton Meester‘s ABC show,Single Parents— and PEOPLE have an exclusive look at their onscreen reunion. Brody, 39, stars as Derek, the musician who loved and left Angie (Meester) years ago. After years of stewing, Will (Taran Killam) convinces her to track him down and say her piece — and it doesn’t exactly go well. In the clip, Will gets into a fight with Derek, who works at a fast-food restaurant.

Adam Brody to Guest-Star on Wife Leighton Meester's Show 'Single Parents' — as Her Former Lover!

Be still, our beating teenage hearts. PEOPLE can exclusively announce thatAdam Brodyis set to guest-star on his wifeLeighton Meester‘s ABC show,Single Parents. Brody, 39, will play Derek, the musician who loved and left Angie (Meester) years ago. After years of stewing, Will (Taran Killam) convinces her to track him down and say her piece — and it doesn’t exactly go well. Brody’s character will appear in the season 1 finale, which will shoot the first week of March and air in early May.

Adam Demos Explains Why 'Sex/Life' 's Season 2 'Perfect Ending' Made Him 'Smile'

This post contains spoilers from the second season ofSex/Life. Sex/Lifeseason 2 came with a series of twists and turns. Brad (Adam Demos) welcomed his first child with new wife Gigi (Wallis Day) and his former flame Billie (Sarah Shahi) started a relationship with a new man, Majid (Darius Homayoun), while balancing her life with three children in Connecticut. After a few chance encounters, the season concluded with Brad and Billie reuniting and declaring their love for each other at Sasha Snow’s (Margaret Odette) wedding after ending their other relationships.

Adam Demos Says His Mother Was 'Covering Her Eyes' While Watching His Steamy 'Sex/Life' Scenes

Adam Demos.Photo: JB Lacroix/ WireImage Adam Demosis beyond proud of his show Sex/Life — even if his mother had a less-than-ideal viewing experience. The 37-year-old actor exclusively tells PEOPLE that his mom can’t always watch the heated affair scenes between his character Brad Simon and Billie Connelly (Sarah Shahi) on the hit Netflix series. “She’s the greatest of all time, and she’s so proud. So beyond proud,” Demos says of his mother Lindy.

Adam Demos Shares Why He Loves 'Sex/Life' Costar Sarah Shahi: 'She's a Goddess'

Adam Demosis sharing his favorite things about hisSex/Lifeco-star andgirlfriendSarah Shahi.On Thursday’sPEOPLE in 10, the 37-year-old actor revealed three reasons why he lovesShahiwhile promotingthe second seasonof the hit Netflix series.“Her heart. That’s first and foremost,” he told host Makho Ndlovu, adding, “Her kindness.“For his final selection, he couldn’t narrow it down to just one aspect of Shahi, sharing, “It’s everything. Can the third thing be everything? I’m her biggest fan for sure, so that would be the third one — everything.