How much is a First Class stamp? what is the cost of celebrex Tat’s enough, Gaga! Mama Monster tweeted a photo of her new tattoo — an anchor on her rib cage. “New Tat. Stamp of His Mermaid,” she tweeted along with a thank-you to Amsterdam Tattoo Museum, who inked up the eccentric songstress. This is the second overseas tattoo Gaga has acquired in recent weeks. In early August, she had the word “ARTPOP” inked on her bicep in Australia.