"J.A.R." is a song by American punk rock band Green Day. The song is featured on the Angus motion picture soundtrack. The acronym stands for 'Jason Andrew Relva', a childhood friend of Green Day bassist Mike Dirnt. Jason Relva died at the age of 19 on April 18 1992 as the result of injuries sustained from a car accident. Mike Dirnt wrote the song in remembrance of his friend. It's about living life to the fullest and making one's own choices. The song reached number one on Billboard's Modern Rock charts in 1995. The song was featured in the end credits of the movie Angus. It is also a B-side to the album Insomniac and is track eight on Green Day's 2001 greatest hits collection International Superhits!. Trivia · "Jason Relva" is thanked in the liner notes of 1,039/Smoothed Out Slappy Hours and Kerplunk! · Mike Dirnt sports a tattoo on his left arm that is identical