Sheryl Crow will be the Guest DJ on Armstrong Radio, Lance Armstrong's SIRIUS Satellite Radio show on Faction channel 28, in a special live broadcast from Spain, where Lance is currently training to kick some more ass at Tour de France.

As guest DJ, Sheryl will select and talk about the music played on the show. The show will air Sunday, March 27 at 3 pm ET (repeated at 9 pm ET).

Alt rock music personality Matt Pinfield has joined Sirius Satellite Radio's on-air staff.

An alternative rock radio veteran, former MTV programming executive and VJ and current Columbia Records executive, Matt Pinfield hosts the new music program Matt Pinfield Plays Whatever He Wants.

?It?s so great to be here at SIRIUS, getting to play whatever I want - deep album tracks, new imports, indies I love and even exceptional unsigned artists. It?s why I got into radio in the first place, and I?m proud to be a part of the SIRIUS family,? Pinfield said.

Matt Pinfield Plays Whatever He Wants can be heard Sundays from 5 to 9 pm ET on commercial-free alternative rock channel Alt Nation 21.

SIRIUS Satellite Radio?s Shade 45, will present two new cutting-edge music programs hosted by DJ Muggs and DJ Tony Touch.

DJ Muggs will host Mashup Mondays (Mondays from 10 pm to 12 midnight ET). DJ Muggs? new show on Shade 45 will feature his exclusive, original mashups as well those from the best mashup DJs from around the world during Mashup Mondays.

DJ Tony Touch will host Toca Tuesdays (Tuesdays from 8 pm to 12 midnight ET) on Shade 45. "Look for my show to feature the vintage Tony Touch mixtape formula: exclusive freestyles, world premieres, celebrity guests and other special surprises," said Touch.

Former KFRX-FM/Lincoln, Nebraska Program Director Ryan Sampson is joining SIRIUS as a Program Coordinator/Assistant and on-air host on SIRIUS HITS Channel 1.

Sampson also held programming positions at WWMX/Baltimore, as Assistant Program Director/Music Director, and was an air talent at WWHT/Syracuse, NY.

"Little Steven" Van Zandt and SIRIUS Satellite Radio will celebrate Rock and Roll's future on the 50th anniversary of the landmark film "Blackboard Jungle," which jump-started rock n' roll with its theme song, "Rock Around The Clock."

A full schedule of bi-coastal, groundbreaking events, premieres, and concerts from March 20 to March 29 will commemorate the 50th anniversary of the film and the official 24/7 launch of SIRIUS Satellite Radio's Underground Garage channel's full roster of DJs.