Question: Peter Callander was a songwriter who created content for which Welsh singer?
Sentence (from "Tom Jones (singer)"): His career has spanned six decades, from his emergence as a vocalist in the mid-1960s with a string of top hits, regular touring, appearances in Las Vegas (1967–2011), and career comebacks—to coaching on "The Voice UK" from 2012 (with the exception of 2016).
Relevant evidence: No