RSP is a Japanese pop group officially described as a hip-hop/R&B dance unit. Formed in 2006 in the Kansai region through Sony Records' audition contest, Real Street Project, the group was selected from more than 5,000 competitors and secured a recording contract. Its lineup consisted of the female singers Ai and Saki and four dancers, combining pop vocals, vocal harmonies, hip-hop/R&B influences, urban rhythms, and choreography-driven performances.
RSP released ten singles and two studio albums through Sony Music Entertainment Japan. The group performed "Kansha. (感謝.)" as the ending theme of "Bleach" and maintained an official website at http://www.rsp-net.com/.
