Harrison Cosmo Krikoryan Jarvis (born 1 September 1989), better known by his stage name Cosmo Jarvis, is an American-born English singer-songwriter, musician, actor, and filmmaker of Armenian descent. In early 2008, he signed to indie label Wall of Sound, and his debut album Humasyouhitch/Sonofabitch was released on 16 November 2009. His first official single "She's Got You" received airplay on BBC Radio 1 and BBC Radio 2 as well as being amongst NME's "10 Tracks You Have to Hear This Week".
In 2015, he auditioned and was cast to portray the character of Sebastian in William Oldroyd's debut feature film Lady Macbeth (2016).
Jarvis confirmed his second album's title as Is the World Strange or Am I Strange? on his official Facebook page. The first single released from the album is "Gay Pirates", which was released on 23 January 2011. The single's music video was directed by Cosmo. The song was featured as Record of the Day and AOL's Spinner video of the day.[not in citation given] "Gay Pirates" was voted number 85 on the Triple J Hottest 100 of 2011, which aired on Australia Day in 2012. The album itself was given an 8.5/10 rating from Soundblab album reviews. He announced in an interview with TNC that he had begun work on his first feature film, called The Naughty Room. The film premièred on BBC Four on the 20/08/12, shortly after the release of Jarvis' third studio album, titled Think Bigger. Cosmo toured the UK in late 2012 supporting Mad Dog Mcrea, for whom he penned the song "Waiting on the Hill". The comedy film Hawk(e): The Movie (2013) features several songs by Cosmo Jarvis. In January 2013, "Love This" came in at number 59 on the Triple J Hottest 100, 2012.