Roots of O.A.R.

Augustana is an American rock band based in San Diego, California. The band formed in 2002 in southern Illinois and have released six studio albums and six EPs while being signed to Epic Records and Razor & Tie. They are best known for their song "Boston" and the album All the Stars and Boulevards. Daniel Layus is currently the sole member of the band and performs both solo and with touring musicians under the name Augustana.

Pearl Jam is an American rock band formed in Seattle, Washington, in 1990. One of the key bands in the grunge movement of the early 1990s, Pearl Jam has outsold and outlasted many of its contemporaries and is considered one of the most influential bands from that decade.

Dispatch is an American indie/roots band. The band consists of Brad Corrigan and Chad Urmston. The band's original bassist, Pete Francis Heimbold, left in 2019.

The Elovaters are an American reggae rock band from Boston that formed in 2014.

Lawrence is an American pop-soul band formed in New York City by siblings Clyde and Gracie Lawrence. The pair have been singing, performing, and writing songs together since early childhood, and have since been joined by six of their best friends from various points in their childhood to form an eight-piece group featuring dual lead vocals, a horn section, and a full rhythm section.

311 is an American rock band from Omaha, Nebraska. The band was formed in 1988 by vocalist and guitarist Nick Hexum, lead guitarist Jim Watson, bassist Aaron "P-Nut" Wills, and drummer Chad Sexton. Watson was replaced by Tim Mahoney in 1990. In 1992, Doug "SA" Martinez joined as a second vocalist and turntablist.

Dirty Heads is an American reggae rock band from Huntington Beach, California. Their debut album, Any Port in a Storm, was released on September 23, 2008, by Executive Music Group (Fontana/Universal). Their latest album, 7 Seas, will released on June 12, 2026, by Better Noise Music. They have been associated with music groups such as Sublime with Rome, 311, and Pepper, and have toured with groups including Cobra Starship, Aer, and Gym Class Heroes.