Can anyone tell what the following musical artists have in common?

Christina Aguilera, Badfinger, John Cafferty and the Beaver Brown Band, Johnny Cash, Ciara, Kelly Clarkson, Destiny's Child, Bob Dylan, Elvis, House of Pain, Jackson 5, Ini Kamoze, Cyndi Lauper, Kingdom Come, Lit, Maroon 5, Pink, Nina Sky, Bruce Springsteen, Justin Timberlake, and Charles Wright and the 103rd Street Rhythm Band.

Give up?

I downloaded at least one song from each of these artists from iTunes tonight. You can call me many things, but don't ever call me musically one-dimensional.

Thanks to my ongoing medical malady, and the lack of a legible MRI REPORT THAT MIGHT HELP MATTERS, I continue to suffer and thus had to cancel my plans tonight. This really irritated me, because it involved out-of-town guests and, in general, some of my favorite people.

So I decided to use the unexpectedly free evening to use the 25 remaining free downloads I received earlier this year when purchasing airline tickets from Continental. I had to use the downloads prior to Dec. 31 or lose them, so I went nuts.

I half-expect the folks at iTunes to report me to some sort of clinic for the musically bipolar.