Question: What is the lead vocalist of the British pop rock band that first gained fame in 2012 and is associated with Ross Golan?
Sentence (from "The Vamps (British band)"): They supported McFly on their in early 2013, and also performed at festivals around the UK as support acts for artists such as Demi Lovato, The Wanted, JLS, Little Mix and Lawson.
Relevant evidence: No