Thrash metal gods Megadeth shook the XM Performance Theater on Friday afternoon for the latest episode of the XM series "Artist Confidential."

Lead guitarist and vocalist Dave Mustaine (right) talked about the evolution of the band, which he formed after leaving Metallica in 1983. Along with being its main songwriter, Mustaine is the only original member of the band.

Megadeth is one of the most successful metal bands of all time, having sold over 20 million albums worldwide, including 5 consecutive platinum albums, and 7 consecutive Grammy nominations for Best Metal Performance.

In 2002, Megadeth disbanded after Mustaine suffered a severe nerve injury to his left arm, but following extensive physical therapy, Mustaine reformed the band in 2004.

Megadeth released its eleventh studio album "United Abominations" this past Tuesday. I don't know the airdate for this XM performance, but it will be listed on XM's Artist Confidential page when available.

Gretchen Wilson will be performing live on Sirius New Country (ch 60) on Thursday,  May 10th at 1:30 pm ET. The "Redneck Woman" will sing acoustic versions of three of her new songs from her new CD.

This isn't the first time Gretchen has performed acoustic versions of her songs for New Country listeners - she visited Sirius with another stellar performance almost a year ago. Gretchen has been credited with saving country music at a time when Nashville was leaning toward an Adult Contemporary style.

Sirius will also give you a first listen to some of the new music on her new CD, One Of The Boys, which is set to be released on May 15th.

Joss Stone and her band held a soulful performance at XM's Jazz at Lincoln Center studios for the latest installment of XM's "Artist Confidential" series. But don't worry if you missed it yesterday because you can still catch it later today at 3pm ET on XM Cafe (ch 45), and there's several more encores playing throughout the week.

You'll hear an hour of music and a live interview with XM's George Taylor Morris in front of a 100 fans. Joss is positively engaging, offering hugs and unabashed answers to some pretty strange questions (because, who wouldn't want to be elbow deep in placenta?).

Well worth the listen. 

Check out additional encore times after the jump...