Ashlee Simpson with son Bronx Mowgli. Photo: Saleem Elatab-Ahmad Elatab, Splash News

Save for the occasional shocking haircut, Ashlee Simpson has mostly stayed out of the headlines over the past year. Well, she's back with a bang.

Our friends at PopEater report that Ashlee has filed for divorce from her husband, Pete Wentz, after two years of marriage.

Simpson, who married the former Fall Out Boy bassist at her parents' California home in 2008, filed documents in L.A. County Superior Court citing "irreconcilable differences" as the cause of their split, according to TMZ.

The singer-actress, who has a 2-year-old son, Bronx, with Wentz, is seeking primary physical custody of the child in addition to sharing legal custody with her ex.

Just last month, Wentz gushed to PopEater about his excitement over spending time with his family.

"The great thing right now is that my family is very mobile and are able to tour with me," he said. "And I think that's the only thing that would've been a hurdle. But the fact they're kind of able to go, I want to be back out there."

Simpson is seeking spousal support from Wentz, with whom she reportedly had no prenup.

Even though divorces are as common as botox in Hollywood, this split was definitely a shocker!