Jorge Nuñez also gets noticed, as does Nathaniel Marshall, in a bad way.By Gil Kaufman Lil Rounds performs on "American Idol" on Tuesday Photo: Frank Micelotta/ Getty Images/ Fox The third round of top 36 performances unfolded Tuesday night pretty much like the previous two: Some wannabes just picked the wrongs songs, others blasted up from nowhere and the frontrunners grabbed a few more feathers for their caps. First the good news: Lil Rounds might be your next American Idol.