Demi Lovato has some brand new ink -- and it was done by a famous tattoo artist!

The "X Factor" judge, who already has 12 pieces of body art all over her body, showed off her latest addition last night on Twitter.

The new piece, her largest yet, is a flock of birds surrounding her previous tattoo of the word "Faith."

The birds were done by "L.A. Ink" star Kat Von D, who Demi thanked on Twitter after getting it done.

"Thank you so much @thekatvond for my new ink!! I think it's beautiful and I love it!," she tweeted.

Lovato has quite the collection of tatts. She also has the words "Stay Strong" and lips on her wrists, "Let Go & Let God" on her feet, a feather behind her ear, "you make me beautiful" on her ribs, a cross on her hand and the words "peace" and "rock n roll" on her fingers.

Check out more inked up ladies in the gallery above!

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