No one can stay popular or unpopular for too long in pop culture, not even Michael Phelps. Everyone's mad because he's endorsing Frosted Flakes, which are apparently not good for you (who knew?). My initial reaction was apathy, but then I thought about my little sister who is downloading all of his favorite songs on iTunes. I don't know how responsible celebrities should be with hero worship, but it seems like at the least he could have signed with Corn Flakes or something.