Transplants is an American punk rock/rap-rock supergroup. They formed in 1999 when Tim Armstrong, of the bands Rancid and Operation Ivy, played his friend and roadie Rob Aston some beats he had made using Pro Tools and asked Rob if he would consider contributing lyrics.

Initially, Tim played all the instruments himself, but as the project grew, he invited musician friends such as Matt Freeman & Lars Frederiksen of Rancid, as well as Vic Ruggiero of The Slackers, to add to the sound. Before long, Tim and Rob decided to officially form a group, but felt incomplete without a drummer. In 2002, Travis Barker from Blink-182 was asked to join.

The group’s music is a combination of hip-hop, reggae, drum'n'bass, dub, and punk. Although many musical genres are used sparingly throughout the album, punk and rap remain the most prominent styles.

In 2003, a year after the release of their self-titled debut album, The Transplants briefly disbanded, due to involvement with their other respective music projects. The following year, they reunited to record their second album, Haunted Cities, which was followed by another hiatus. After the announcement of new material being written in 2010, Aston and Armstrong made an appearance on Barker’s 2011 solo album, Give the Drummer Some, which led to their 2013 release, In a Warzone. In 2017, Transplants released an EP known as Take Cover, which features one new song, “Won’t Be Coming Back”, as well as a re-work of Barker’s song, “Saturday Night”.