And biz.yahoo.com says (in SIRIUS XM Radio to Pay Tribute to Michael Jackson with Special Programming Across its Music Channels) SIRIUS XM Radio announced today that it will commemorate the life of Michael Jackson with special programming across a wide range of its music channels.

And Yahoo! Answers says (in Open Question: Does it cost extra for another XM radio receiver?) Looking at some of the portable XM radio thingies, and cannot find if you have to pay extra per month for the subscription if you already get XM in your car, or if it's just 15$ a month, no matter how many receivers you use.