Question: What role in their respective bands do Stephen Christian and Jonathan Davis share?

Related documents: [0]  [DOC] Stephen Christian is an American singer and songwriter best known as the former lead vocalist of the alternative rock band Anberlin, as well as the vocalist of his acoustic side-project Anchor & Braille. He and his bandmates started Anberlin in 2002, after the demise of their previous group, known as SaGoh 24/7. He is one of the main songwriters for Anberlin along with Joseph Milligan, and with the band has released seven albums, the final being in 2014. Many of the albums in the Anberlin discography have peaked in the top ten on various "Billboard" charts. [END] 
[1]  [DOC] Jonathan Howsmon Davis (born January 18, 1971), also known as JD and JDevil (or J Devil), is an American musician best known as the leading vocalist and frontman of the nu metal band Korn. [END]  
Answer: vocalist
vocalist