Joan Jett is an American rock guitarist and singer-songwriter, known for her work with the Blackhearts and for hit songs such as I Love Rock 'n' Roll and Bad Reputation.Joan Jett has numerous tattoos on her body, which includes an Ohm symbol on the back of her neck, plus an inverted triangle on her left upper arm, along with a tribal armband that resembles several intertwined ichthys.The rock star has a few other tattoos including an artsy spiral design on her left forearm, a unique V design on her chest and an unknown tattoo design on her lower back.Perhaps some other tattoos we haven't spotted