Pop star Lady Gaga took to photo-sharing website Instagram to share a video of herself getting 17th tattoo on her armpit.

The 28-year-old singer's tattoo, on her left side, is a tribute to her fans. It has a paisley design in purple ink with words 'Mother Monster' below it, reports dailymail.co.uk.

'Mother Monster' is Gaga's nickname for herself while her fans are known as her 'Little Monsters', a phrase she has already inked onto her arm.

The singer posted the video Tuesday with a caption that read: `Happy Birthday The Fame Monster`.

Gaga also shared a topless picture while getting inked by friend and tattoo artist Eric Gonzalez.

In the picture, Gaga is seen protecting her modesty with her arm.

The `Applause` hitmaker decided to get the new body art Tuesday because it marked the fifth anniversary of the release of `The Fame Monster`, the reissue of her debut album `The Fame`.