Apple today quietly slipped two new features into the US iTunes Music Store.

The first being "Commercial Success." Currently featuring 26 songs from recent commercials including Apple, Old Navy, Budweiser, Jaguar, AT&T, Cingular, Motorola, Dockers, Diet Coke, Candies, Honda, Hilton, Citibank, Nike and more.
The second is "As Heard On" which makes it easy to download songs from American Idol. The feature allows users to scroll between the weeks of the show to download a particular song.