Tuesdays are big in entertainment-ville: Not only do all the new DVD releases hit Netflix [1], 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 [2]), that John Mayer makes music. Today, though, his live performance at the Nokia Theater in LA is available for download [3], and most of his fan favorites are there, including "Waiting on the World to Change [4]." He also does a mellowed-out cover of "Free Fallin' [5]."

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 [6], their music sounded a bit different. I even thought, "This could totally be on an episode of The Hills [7]." 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 [8]," which is pretty decent.

One more guilty pleasure, so .

Squeaky clean: I'm not so sure about the rest of Disney star Vanessa Hudgens's second album, Identified [9], but I'm a wee bit addicted to the single "Sneakernight [10]." 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 [11] and . . . yeah, I kind of like it.