Nimrod is the fifth studio album by the American punk rock band Green Day, released on October 14, 1997 through Reprise Records. The group began work on the album in the wake of their cancellation of a European tour after the release of Insomniac. Recorded at Conway Studios in Los Angeles, the album was written with the intent of creating solid songs as opposed to a cohesive album. As a result, Nimrod is noted for its musical diversity and experimentation, and contains elements of folk, surf rock, and ska. The lyrical themes discussed on the record include maturity, personal reflection, and fatherhood. The album peaked at number ten on the Billboard U.S. charts and was certified double platinum by the Recording Industry Association of America (RIAA). The record also was certified triple platinum in Australia and double platinum in Canada. Nimrod also received generally positive reviews from critics, who praised Armstrong's songwriting on the record. The album yielded the acoustic hit "Good Riddance (Time of Your Life)", which appeared at numerous pop culture events, including the series finale of the sitcom Seinfeld in 1998. To promote the album, Green Day embarked on an extensive…