Oxygen has greenlighted Best Ink, a competition reality series featuring 10 tattoo artists competing for a cash prize. The hourlong project, originally announced as in development at Oxygen’s upfront in April, has received an eight-episode order for a winter premiere. Former American Idol contestant Kimberly Caldwell, described as a “tattoo fanatic,” has been tapped as host. Tattoo artist Joe Capobianco will serve as a head judge, joined by model/tattoo-shop owner Sabina Kelley. Bunim/Murray is producing, with Jonathan Murray, Gil Goldschein and Rico Martinez serving as executive producers.