Question: What is the name of a backing vocalist on "It Hurts to Be in Love" , by Gene Pitney, an American singer-songwriter, musician, and sound engineer?
Sentence (from "The Many Sides of Gene Pitney"): It also features two songs that Pitney had previously written for Ricky Nelson, "Hello Mary Lou" and "Today's Teardrops"; the latter also recorded by Roy Orbison.
Relevant evidence: No