Say it ain't so!  After 9 months of bliss, it seems that the reality heiress and the rocker have gone their separate ways.  A source tells People that Paris Hilton and Benji Madden have split up, "She is saddened by the breakup but they're just too different and they wanted different things in life.  He was loyal and sweet but it was time to take a break."

The break up came a few days ago and the couple have been seen partying separately; Paris has even been spotted with ex-boyfriend Stavros Niarchos in Miami.

Tough break you guys, but I'm sure you'll be back on your feet in no time (well, at least Paris will)!