Question: "Glassheart" is a song conceptualised by Leona Lewis and a frequent collaborator who is the lead vocalist for what pop rock band?
Sentence (from "Glassheart (song)"): It was co-written by Lewis and Tedder alongside Brent Kutzle, Noel Zancanella, Justin Franks, Fis Shkreli and Peter Svensson.
Relevant evidence: No