Adio Marchant, known professionally as Bipolar Sunshine, is an English singer. Previously the co-vocalist with the Manchester band Kid British, he embarked on a solo career in 2013. Signed to Polydor/Aesthetic Recording, he has released two EPs to date and is currently working on his debut album.

Marchant was raised in Didsbury, south Manchester, by Jamaican parents who separated when he was still young. In 2007, he co-founded and contributed vocals in the six-piece Kid British. The band went on to have a moderately successful career and released five EPs between 2009 and 2012 before splitting with a final farewell gig in Manchester in December 2012. His debut solo EP as Bipolar Sunshine, Aesthetics, was released in June 2013, with the lead track "Rivers" becoming iTunes' 'free single of the week'. His next EP Drowning Butterflies followed in November 2013 and featured the single "Love More Worry Less". In 2014, Bipolar Sunshine embarked on A Dream for Dreamer's Tour in the UK, with his London show at XOYO sold out 5 weeks in advance. He released two singles: "Where Did the Love Go" which was featured on BBC Radio 1's playlist and "Deckchairs on the Moon" which charted at no. 85 in the UK Singles Sales Chart and no. 93 in the UK Downloads Chart. He appeared at Blissfields festival and headlined Shepherd's Bush Empire.

His song "Daydreamer" was used in BBC One's 2015 trailer. The track became arguably his most successful single to date, peaking at no. 67 in the UK Downloads Chart and no. 129 in the main UK Singles Chart in February 2015. He supported The Courteeners at their gig at Manchester's Heaton Park and performed at Kendal Calling in July 2015. He contributed vocals on DJ Snake's popular 2015 single "Middle".