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 <answer>David Hernandez</answer> also attracted some attention due to his past employment as a stripper.
Which season seven contestant had worked as a stripper before his time on American Idol?
David Hernandez