Pop star and controversial Rihanna is armed and dangerous with her latest tattoo. Rihanna's tattoo artist BigBang. The singer's new gun tattoo located under her right arm. BigBang says in another photo post that Rihanna wanted guns on her shoulders but thought it would affect her agreement with Cover Girl. Rihanna has several tattoos already, including stars on the back of her neck and "shhh…" on her right pointer finger.That's very cool Rihanna.