Tuesdays are big in entertainment-ville: Not only do all the new DVD releases hit Netflix, but new music also pours into stores, including iTunes. So I take a spin through each week's iTunes music releases and pick out some albums and tracks worthy of a download. Here's today's selections:

Guitar hero: I sort of forgot, what with all the press around the other stuff he does (i.e. girls), that John Mayer makes music. Today, though, his live performance at the Nokia Theater in LA is available for download, and most of his fan favorites are there, including "Waiting on the World to Change." He also does a mellowed-out cover of "Free Fallin'."

Change of tune: I've been a passing fan of the Chicago band Alkaline Trio over the years, but upon listening to their new album, Agony & Irony, their music sounded a bit different. I even thought, "This could totally be on an episode of The Hills." And sure enough, a quick search revealed that yes, this band has appeared on the show. So take from that what you will. Also, check out the track "Help Me," which is pretty decent.

One more guilty pleasure, so read more.

Squeaky clean: I'm not so sure about the rest of Disney star Vanessa Hudgens's second album, Identified, but I'm a wee bit addicted to the single "Sneakernight." It doesn't make a lot of sense, and it's totally hilarious lyric-wise, but I I've heard it on the promos for So You Think You Can Dance and . . . yeah, I kind of like it.