The latest batch of wackiness from the Lips -- after releasing a 6-hour song -- is that the band are planning to record a 24-hour-long song. If that's not WTF-worthy enough, the final product is to be released inside a human skull. No, not a gummy human skull -- they did that already -- an actual human skull.

The collaborative album from Metallica and Lou Reed is set for release on November 1, with a single, "The View," already available on iTunes. Now, you can head over to the group's store to check out all all of the special packages of the album available.

It's become fairly common practice for progressive/technical metal bands to release instrumental versions of albums, which is a great thing for guitarists trying to learn songs or just anyone who loves the music but isn't quite feeling the vocals. The latest band to ditch the vocals for an instrumental release are TesseracT, who have just released an instrumental version of their debut album, One.