Oscar Thomas Haller known professionally as Swaner (b. 17 October 1998) is a singer, songwriter and record producer from Oxford, England. He was previously known by he’s nicknames like: His Lord Majesty, SAIJI, King of the Black, Kzuuya and Blacky.

From 2015 to 2017 he signed to Rainbow Factory Records. As of January 2018 he sing to Highly Flammable Entertainment.