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Today Demi Lovato officially leaves her teenage years behind. The “Give Your Heart a Break” songstress seems like such an old soul (seriously, “Skyscraper” was so powerful it’s hard to imagine it was sung by a teen) that we’re sure she’s ready to go into her twenties. Still we wonder how Demi will celebrate the big day. We’re sure in total rock star fashion, as usual. Leave her some love in the comments!