Kenneth Benjamin Laguna is an American songwriter, record producer, and musician, best known for his work with Joan Jett. He established Blackheart Records with Jett in the early 1980s. He has continued to work with Joan Jett, as performer, producer and manager, on her later albums and tours, and acted as Executive Producer on the 2010 film The Runaways, about Jett's earlier band. On April 18, 2015, Laguna, along with Joan Jett and the Blackhearts, was inducted into the Rock and Roll Hall of Fam ...