Michelle Obama was both serious (addressing childhood obesity) and silly (attempting to tame the family dog) yesterday during the White House’s Take Your Children to Work Day, but the most pressing issue raised by far: What music is on her iPod? Her answer, geared toward the kids in the audience: Beyoncé, Usher, Stevie Wonder, Rihanna, and Michael Jackson, Politics Daily reports. Oh, and, "Sting, anyone? Sting? No?"