Demi Lovato Sells Out Concert Dates, Tweets About Weight Gain

Minutes—that’s all it takes to sell out Demi Lovato’s concerts from coast to coast!

This morning, tickets went on sale for Lovato’s new concert dates and it took all of 15 minutes for her show at New York’s Hammerstein Ballroom on September 17th  to sell out. The singer's September 23rd show at Club Nokia in Los Angeles also sold out in just 30 minutes! Talk about having a strong fan base.

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In other Demi news, the half-Mexican singer reunited with her good friend, Selena Gomez on the black carpet at the MTV Video Music Awards last night. She also reunited backstage with her ex-boyfriend, Joe Jonas. Demi and Joe broke up in May of 2010, but they were all smiles as they posed for a photograph together at the awards show. How cute is that?

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While Demi looked absolutely gorgeous at the VMAs, Demi took to her Twitter page last night and wrote: "I've gained weight. Get over it. That's what happens when you get out of treatment for AN EATING DISORDER." Demi later replaced her earlier tweet with the following: "Guess what, I'm healthy and happy, and if you're hating on my weight you obviously aren't. :) #UNBROKEN."