Kathy Griffin disses Demi Lovato's MTV VMA performance

Actress-comedian Kathy Griffin reignited her feud with pop star Demi Lovato by slamming the singer's 2015 MTV Video Music Award performance.
The 54-year-old comedian took to Twitter and accused the former Disney star of lip-syncing her new single "Cool for the Summer" at the event, reported Aceshowbiz.
"Demis live singing was very obviously live if you know I'm saying. And then the rest of the track or tracks. #atleastshesang-ish," she wrote.
Lovato, 23, eventually found the tweet and responded to the allegation by insinuating that the former "Fashion Police" host was obsessed with her.
"Happy to see you're still stanning me @kathygriffin. Dont worry, my new album is out October 16. But you probably already knew that," she said.

Griffin then shared a throwback photo of her and the "Skyscraper" hitmaker together, and made fun of the singer's use of slang in the caption, saying, "I was STANDING next to you when I received my #dosomething award."
Griffin and Lovato had a spat last year after the comedienne slammed the "Heart Attack" hitmaker.