That's the buzz that started after Demi announced she was taking a break from twitter last week.
There's no truth to the rumor, however, which started as a blind item at Blind Gossip, and has been further supported by another blog which threatened to release the name of the treatment facility.
We're happy to say that the Demi rehab rumors are false, as GossipCop.com reports they exclusively got word directly from Demi's rep, who shot down the latest claim, telling the site it's "absolutely untrue."
You may recall that Demi took a break from Twitter last week after gossip sites spun her tweets about friendship advice out of control.
She tweeted last week: "Blehh. I really love my fans but I hate gossip sites... Gonna take a breather from twitter.. I love y'all!"
Seriously, can't a girl take a break without drumming up rumors that she's heading to rehab?