Question: After releasing her fourth studio album, Only One in the World, what musical did Heather Headley debut in?
Sentence (from "Only One in the World"): Only One in the World is the fourth studio album by Trinidadian-American singer-songwriter Heather Headley, released on September 25, 2012, just before Headley's West End debut as Rachel Marron in the musical "The Bodyguard".
Relevant evidence: Yes