'I kinda felt like I let everyone down,' he says of first live performance.By Katie Byrne Matt Giraud on Thursday's "American Idol" Photo: Frank Micelotta/Getty Images for Fox "American Idol" contestant Matt Giraud had a bit of an identity crisis during his first live performance, falling flat with his cover of Coldplay's "Viva la Vida." But this week, the soul man was back, performing the Jackson 5's "Who's Lovin' You" and earning a spot in the finals, alongside Megan Joy Corkrey, Anoop Desai and Jasmine Murray. We chatted with the 23-year-old from Kalamazoo, Michigan, about dropping the ball last week, Simon's fashion critique and more. Q: How did you feel after your Coldplay performance last week?