Miley Cyrus took to Instagram Friday to share photos of her latest work of body art -- an inner-lip tattoo of a frowning yellow cat. "#sadkitty," she captioned the snap. Cyrus' friend, Katy Weaver, got a tiny heart on her own lip, and captioned an Instagram photo, "We got tattoos on our lips... What the f***.... @mileycyrus #lovemoneyparty." Here's a closer look: Inner lip tattoos fade quickly, and usually disappear within a few years. It must have been a painful experience. The 21-year-old singer shared a photo of herself on Friday with a washcloth over her face. "My life right now thanks to @waynecoyne @stevendrozd @katy_weaver," Cyrus wrote. "#OUCHYBOOBOO." my life right now thanks to @waynecoyne @stevendrozd @katy_weaver #OUCHYBOOBOO #fuckyeahtulsa pic.twitter.com/z8UWuizL1d— Miley Ray Cyrus (@MileyCyrus) March 14, 2014