When someone is widely hailed as the greatest guitar player ever, how do you step up and cover one of his songs? Have you ever noticed that the ratio of Metallica tribute albums to Hendrix tribute albums is something like 20 to 1? When's the last time you heard someone say, "Yeah, he played it better than Hendrix," without a clearly present sarcastic tone?

Deep Purple's 19th studio album — Now What?! — came out today, April 30, in North America. Three songs from the new album, which is available on iTunes, are being streamed on YouTube. They are "Hell to Pay," "All the Time in the World" and the newly posted "Vincent Price," which you can check out below.

Black Sabbath unveiled another new track last night during a show in Australia. The song, "Methademic," can be heard — and seen — below, courtesy of some fan-filled video.

"Supergroup" is a word that doesn't sit well with a lot of people. For some, it conjures up bloated egos battling for creative control. For others, it makes them think of flash-in-the-pan projects that never had much of a lasting impact.