Ke$ha Lip Tattoo: Singer Gets 'SUCK IT' Inked Inside Her Lip (PHOTO)

We wouldn't expect anything less from the pop star who tweeted a photo of herself peeing in the street.

On Wednesday, Ke$ha tweeted a photo of her latest tattoo -- and it's one that can only be seen if she wants to show it off. The 25-year-old singer had the words "SUCK IT" tattooed on her inner bottom lip, courtesy of the folks at Alchemy Tattoo in Los Angeles.

"new tatt!!! @alchemytattoola http://instagr.am/p/MXqKieu1Xu/," she wrote, posting a close-up photo of her new ink, while also showing off some dental work with a gold tooth.

The new tattoo seems like just another obvious attempt to keep Ke$ha appearing edgy -- and follows a long line of stunts she has posted to Twitter.

In April, the singer posted a photo of herself peeing in the street and in March, she showed off her newly shaved and studded hairstyle . Other "edgy" tactics include her "Put Your Beard In My Mouth " blog, which features photos of the singer with fans who -- you guessed it -- put their beards in her mouth.

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