South Philly born and raised Amber Rose, a former Delilah's dancer, filed for divorce from Pittsburgh rapper Wiz Khalifa, according to TMZ.

Rose cites irreconcilable differences and asks for full custody of their son, Sebastian. Why the split? TMZ reference rumors of infidelity, although acknowledges there's nothing about that in the divorce filings. Even worse? TMZ reports the split is quite bitter. Nick Cannon, who is going through his own marital troubles with Mariah Carey, has said he is not the cause of the break up. He recently became Rose's manager.

Rose and Khalifa have been married for a year. Previously, Rose dated Kanye West.

Khalifa will be in Philadelphia for the Forbes' Under 30 music festival, playing a free show on Oct. 19.