B-2 Unit is the second solo electronic music album by Japanese musician Ryuichi Sakamoto, released in 1980. The lead single "Riot in Lagos" was a highly influential cult hit, significant to the development of electro, hip hop and techno music, and considered one of the most important tracks in the history of electronic dance music. It is also one of the first albums to feature the influential Roland TR-808 drum machine, which "Riot in Lagos" is credited for introducing to clubs.