Query: Which contestant garnered the most attention because of a prior recording contract?
Context: Season seven premiered on January 15, 2008, for a two-day, four-hour premiere. The media focused on the professional status of the season seven contestants, the so-called 'ringers', many of whom, including Kristy Lee Cook, Brooke White, Michael Johns, and in particular Carly Smithson, had prior recording contracts. Contestant David Hernandez also attracted some attention due to his past employment as a stripper.