Kylie Jenner will return to the runway for Avril Lavigne’s Abbey Dawn fashion show

Avril Lavigne

Even though Avril Lavigne has moved on from Brody Jenner, she's obviously still on good terms with his family! Lavigne, 27, broke up with Jenner, the son of reality star and former Olympian Bruce Jenner, in January after the couple dated for almost two years. She's been dating Nickelback singer Chad Kroeger for the past six months, and the two announced their engagement last week. But despite that, Lavigne has invited Brody's half-sister, 15-year-old Kylie, the daughter of Kris and Bruce Jenner, to walk in the show for her clothing line Abbey Dawn at New York Fashion Week next month. High school student/reality star/model Kylie caused quite a stir when she made her runway debut at the Abbey Dawn show in 2011. Family members including Brody, Kourtney and Kim Kardashian, as well as Kim's husband at the time Kris Humphries, cheered both Kylie and Avril on from the front row. Since everybody got along so well, it's too bad that Avril and Brody didn't work out. Reportedly, the couple split because she wanted him to be spending time with her while he was more focused on a post-"Hills" career.

Kylie Jenner (WireImage)

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This year, the crowd that's sure to include a few Kardashians again, will have even more to get excited about, Lavigne told People. The quality of the clothing "is a lot better" than it was when the line began in 2008. The designs originally were available only in juniors sizes at Kohl's department stores. However, the line was revamped in December 2010, and now includes women's and men's sizes, as well as footwear and handbags, which are available for purchase at boutiques and AbbeyDawn.com. "When I started, it was a cheaper price point and geared toward a younger audience," Lavigne said. "[Now] it's a little hipper, good quality. It appeals to everyone. It's really great." Pieces include a $60 skull print hoodie and a $65 pair of studded peep-toe heels.

Even if Brody's in the crowd to support Kylie again, we doubt there will be any drama between he and Avril. The "Complicated" singer is still friendly with former flame Deryck Whibley, the Sum 41 rocker she was married to from 2006 to 2009. And the Kardashian clan has also embraced an ex before. Adrienne Bailon, who dated Rob Kardashian from 2007 to 2009, has remained pals with his sisters.