Jonathan Rashleigh Knight-Rodriguez is an American pop singer. He is best known for being a member of the boy band New Kids on the Block. The band also includes his younger brother Jordan, and members Donnie Wahlberg, Joey McIntyre, and Danny Wood. He is the oldest member of the band and the first to leave it in 1994 prior to their official split.

New Kids on the Block is an American boy band from Dorchester, Massachusetts. The band consists of brothers Jonathan and Jordan Knight, Joey McIntyre, Donnie Wahlberg, and Danny Wood. New Kids on the Block enjoyed success in the late 1980s and early 1990s and have sold more than 80 million records worldwide, and are often credited for paving the way for future boy bands such as Take That, Backstreet Boys and NSYNC. They won two American Music Awards in 1990 for Favorite Pop/Rock Band, Duo, or Group and Favorite Pop/Rock Album. In 1991, they performed the halftime show at Super Bowl XXV, a first for a popular music group.