Ninja Sex Party (often abbreviated as NSP) is an American musical comedy duo consisting of singer Dan Avidan and keyboardist Brian Wecht. They formed in 2009 in New York City and are currently based in Los Angeles. They are also known as two thirds of the more rap-based musical trio Starbomb, together with frequent collaborator Arin Hanson. The work of Ninja Sex Party typically consists of rock or synth-pop-oriented humorous songs, frequently on the topics of sex, seduction, love or fantasy, with Avidan and Wecht respectively portraying the characters of Danny Sexbang; an idiotic, exuberant, hypersexual Jewish man who constantly yet unsuccessfully tries to hit on women, and Ninja Brian; a non-verbal, extremely homicidal ninja with whom Danny is best friends. However, their Under the Covers cover album series that began in 2016 saw them take on a non-comedic approach to music for the first time, covering various songs from the 1970s, 1980s and 1990s. To date, NSP has released nine studio albums (six consisting of original material, and three cover albums), in addition to three albums as a part of Starbomb. Wecht initially acted as record producer and performed all instrumentation on their early albums, until they started working with producer Jim Arsenault (and later Jim Roach) and backing band TWRP in 2015. Wecht and Avidan have appeared in TWRP's own works, either as individuals or as Ninja Sex Party. Since May 2018, Wecht also portrays Ninja Brian on his own live comedy show titled Ninja Brian's All-Star Variety Luau Spectacular. Every non-cover album that the group has released has reached #1 on the Comedy Albums chart, and their highest peaking album on the Billboard 200 chart was #17 despite being independent.