Demi Lovato Snorted Cocaine Like A Pro?

Texas college student Brian Payne told Life & Style that Demi Lovato snorted cocaine like a pro and she was 17 at the time. Demi's partying continued right up to the point she checked into a treatment center last week. Unnamed source close to Demi said: 'She had been on a tear lately. She'll chug booze straight from the bottle, I just remember her doing it [cocaine] as if she had been doing it for a long time. It didn't seem like something new to her.'

Payne said he and Demi partied all night at the North Richmond Hills, Texas, house of a friend following a concert in Dallas. He said Lovato ended up getting cozy with their host, a friend named Dave who was later killed in a water sport accident. Friends said the untimely death and her breakup with Joe Jonas left Demi heartbroken and fueled heavy drinking: 'Since Joe dumped her, Demi's been depressed and drinking a lot. It's been hard for her to keep working so closely with Joe.'

Demi is reportedly caught on camera snorting cocaine in a shocking booze and drugs binge. A friend who witnessed Demi do lines of coke at a party in North Richland Hills, Texas, told Radar Online: 'Demi was belligerent, being slutty and doing coke all over the house. The guy who hosted the party shot multiple

videos of this and what I've seen with my eyes, Demi is screaming, 'F**k all of you, I'm famous, I don't care what any of you think of me the whole world loves me.' He shot her in the bathroom as she was finishing a line (of cocaine).'

Demi can supposedly be seen in video snorting cocaine up her nose through a rolled up note, according to the amateur cameraman who captured the images. The tape is being shopped to various media outlets. The source said: 'I just remember her doing it as if she had been doing it for a long time. It didn't seem like something new to her.' She had to be kicked out of the party because she was 'out of control'.