Tuesdays are big in entertainmentville: 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 are today's selections:

Comeback kid: Britney Spears's new album, Circus, is being described as "adequate" by most reviewers, and from what I've listened to so far, I'd agree. I've had "Womanizer," a song I really enjoy, on my jogging mix for a while now (and all I see is Chuck Bass). I'm not too sure what else from this odd collection of songs I will get into next, but Britney's tunes have a way of creeping up on me over time as I warm to their catchiness. One song, "Unusual You," is very pretty even though it hardly sounds like her, and "Kill the Lights" is cool. Also: What is going on with her accent on "Mmm Papi"?

The best of Chess: I caught an early screening of Cadillac Records last night (I'll share my thoughts on the movie later this week) and boy, am I in the mood for some blues from this era. Lucky for me, the original songs featured in the film have been neatly rounded up for an album available for download today. Classics like "(I'm Your) Hoochie Coochie Man" and "Forty Days and Forty Nights" by the legendary Muddy Waters sound great even on MP3. Oh man, and Etta James pouring her heart out on tracks like "Trust In Me" and "All I Could Do Is Cry" sounds amazing here too. The entire album is awesome — I downloaded it all.

One more still to come, so read more.

Before they were famous: Before Neil Young released a single song as a solo act, he taped this concert held at the Canterbury House in Ann Arbor in 1968. The tracks sound intimate, and Young sometimes seems shy, but it's cool to hear him learn his way through songs like "On The Way Home" and "Birds" live.