"Yes, I'm An Abbey-head proudly!" - P -Diddy

Downton Abbey" has added a ton of new actors to its cast for season four, and some fans might've thought Sean "P. Diddy" Combs was among them.

The music mogul (and hip-hop's wealthiest) sent out a flurry of tweets on Wednesday that suggested he was the newest resident of "Downton," along with a supposed picture of himself on set:

"I have to admit that 'Downton Abbey' is one of my favorite shows- and thats why Im so excited today," he posted last week Wednesday. "MY BIG NEWS: So happy to announce that Im a series regular on DOWNTON ABBEY-my favorite show+i'll be debuting a sneak peek!"

But then PBS, which airs the hit British series in the States, went on the record saying that the Diddy on "Downton" casting just wasn't true.

As it turns out, the mogul *has* been cast ... but in a Funny Or Die spoof of the period drama (which has strong language). The nearly five-minute clip jokes about "Downton's" recent casting of its first black character, Gary Carr. Diddy, a self-professed "Abbey-head" who still can't help but call it "Downtown" instead of "Downton," says he broke that barrier first:

May 21, 2013