Jem Aswad Senior Music EditorHipgnosis Songs, founded by Merck Mercuriadis and launched on the London Stock Exchange in 2018, is one of the most disruptive upstarts in recent music industry history, spending more than $2 billion acquiring catalogs of hitmakers ranging from the Chainsmokers to half of Neil Young’s work, with a foundation in lesser-known but high-earning songwriters and producers such as Kanye West/Harry Styles collaborator Jeff Bhasker and Eurythmics cofounder Dave