Demi Lovato has had several birds tattooed on her arm.

The 'X Factor' judge had the inking done by tattoo artist-and-model Kat Von D and it features a flock of birds flying up the length of her right forearm.

Unveiling the fresh design on her twitter page, Demi posted: "Thank you so much @thekatvond for my new ink!! I think it's beautiful and I love it! (sic)"

The tattoo starts at the same point as one her previous designs, the word "faith" in cursive handwriting, which she got in December 2011.

Kat - who is dating DJ deadmau5 - tweeted Demi back, saying: "So lovely tattooing the beautiful, @ddlovato today! Thank you, Demi! (sic)"

The 'Skyscraper' singer has several other tattoos, including the words "Stay" and "Strong" on her wrists, a cross on her right hand and the phrase "you make me beautiful" emblazoned on her side.

Demi previously revealed she sees her tattoos as a connection with all her fans who supported her while she was in rehab for three months from November 2010.

The pop star - who received treatment for an eating disorder and self-harming - said: "I got 'Stay' and 'Strong' on my wrists, and these actually were really meaningful to me. My fans constantly said it the entire time I was in treatment."