Jack Christopher Allsopp (born 18 May 1975), known by the stage name Just Jack, is an English musician from Camden Town, London. He first came to prominence with the release of his 2007 single "Starz in Their Eyes", which reached number two on the UK Singles Chart. He has also since been known for the songs "Embers", peaking at number 17, and "The Day I Died", which peaked at number 11, and the track "Writer's Block".