fourth is Reagan. In order to avoid confusion each of the sons named "Jay Dee" goes by a nickname: "Jay" (Jay Dee Penn), "Jay Dee" (Jay Dee Penn II), and "Baby Jay" (Jay Dee Penn III). Penn's mother, Lorraine Shin, is of Hawaiian and Korean descent. Being born in Hawaii, Penn takes much pride in his Hawaiian upbringing. Penn often plays Hawaiian music during his walk-out entrances, a combination of Hawaii ’78 into E Ala E, both performed by Hawaiian musician Israel Kamakawiwoʻole as a tribute to his Hawaiian heritage and respect for his opponents, fans and the fight game. Penn has also stated that he identifies strongly with his Korean roots and has traveled to South Korea to hold seminars. He also said that he gets his hot temper from his Korean side which helps him use this energy in his fights. Penn has two daughters with the same mother. He says that they have never married and "it doesn't matter that much in Hawaii." Penn is the co-author of Mixed Martial Arts: The Book of Knowledge, an instructional book on mixed martial arts fighting. Penn, along with Dave Weintraub, authored the autobiography Why I Fight: The Belt is Just an Accessory in 2010. The book debuted at #22 on the New York Times bestseller list. Penn also appeared in the film Never Surrender in 2009. Penn was also the subject of a Paternity Lawsuit in relation to his daughter, Mahina Amado, approximately a year after the girl's birth. On the 5th of October, 2021, Penn also announced his intention to run for governor in the 2022 Hawaii gubernatorial election. He lost the Republican primary, ending as the runner-up to winner Duke Aiona. Following the election, he filed a complaint with the Hawaii Supreme Court contesting the results. Legal controversies Penn has an extended history of alcohol-induced violence. In January 2015, Penn was arrested in Kihei, Hawaii and charged with assault after a brawl outside of a bar. In 2019, Penn's estranged girlfriend, Shealen Uaiwa, filed a restraining order against him in October from her and Penn's children, alleging years of physical and sexual abuse. The order was granted in February 2019 and was in order through October 2021. In June 2019, an intoxicated Penn fought a bouncer outside of a Honolulu strip club. On August 27, 2019, Penn was involved in a bar brawl on Hawaii's Big Island.