NEWS RELEASE

Dale Earnhardt Jr. Interviews Danica Patrick on XM Satellite Radio's 'Dale Jr. Unrestricted'

4/28/2008

WASHINGTON, April 28 /PRNewswire/ -- The two biggest superstars in auto racing will go one-on-one on XM Satellite Radio this week when Dale Earnhardt Jr. interviews Danica Patrick on his weekly XM Radio show "Dale Jr. Unrestricted."

(Logo: http://www.newscom.com/cgi-bin/prnh/20070313/XMLOGO )

Earnhardt's interview with Patrick will air nationwide on the XM Sports Nation channel (XM 144) this Thursday, May 1, at 7:30 pm, with encore broadcasts on Thursday at 10:30 pm and Saturday at 1:30 pm and 6:30 pm (all times Eastern).

Patrick made racing history at the Indy Japan 300 on April 20 when she became the first female to win a major closed-course auto race.

"Danica is a talented driver, and she backs up that talent with the kind of commitment and dedication you've got to have to succeed," Earnhardt said. "We've hung out a little, and I'm glad to see her hard work pay off."

NASCAR's Earnhardt and the IndyCar Series' Patrick have more in common than auto racing. They are both members of the XM family: Patrick is a co-host of the XM show "Andretti Green Racing Hour" on Tuesdays at 7 pm ET/4 pm PT on the XM Sports Nation channel. The two drivers also made a memorable joint appearance in Jay-Z's video for "."

Earnhardt co-hosts "Dale Jr. Unrestricted" with his friend Josh Snider on XM Radio every Thursday night during NASCAR season. 1 Racing fans can tune into "Dale Jr. Unrestricted" on XM radios for the car, home, and portable use. XM airs from coast to coast to more than 9 million subscribers.

About XM

XM (NASDAQ: XMSR) is America's number one satellite radio company with more than 9 million subscribers. Broadcasting live daily from studios in Washington, DC, City, Chicago, Nashville, Toronto and Montreal, XM's 2008 lineup includes more than 170 digital channels of choice from coast to coast: commercial-free music, premier sports, news, talk radio, comedy, children's and entertainment programming; and the most advanced traffic and weather information.

XM, the leader in satellite-delivered entertainment and data services for the automobile market through partnerships with General Motors, , Hyundai, Nissan, Porsche, , Subaru, Suzuki and Toyota is available in 140 different vehicle models for 2008. XM's industry-leading products are available at consumer electronics retailers nationwide. XM programming is also available through XM Radio Online, the exclusive home on the Internet for XM's commercial-free music channels; as downloads of original XM shows via from XM's Web site or the Apple's iTunes Store; and as streams of commercial-free XM music channels to AT&T and Alltel wireless customers through XM Radio Mobile. For more information about XM hardware, programming and partnerships, please visit http://www.xmradio.com/.

Factors that could cause actual results to differ materially from those in the forward-looking statements in this press release include demand for XM Satellite Radio's service, the Company's dependence on technology and third party vendors, its potential need for additional financing, as well as other risks described in XM Satellite Radio Holdings Inc.'s Form 10-K filed with the Securities and Exchange Commission on 2-28-08. Copies of the filing are available upon request from XM Radio's Investor Relations Department. All programming subject to change.

Photo: NewsCom: http://www.newscom.com/cgi-bin/prnh/20070313/XMLOGO AP Archive: http://photoarchive.ap.org/ PRN Photo Desk, [email protected] SOURCE: XM Satellite Radio

CONTACT: David Butler of XM Satellite Radio, +1-202-380-4317, [email protected]

Web site: http://www.xmradio.com/

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