Concert series strangeness.

Apologies in advance, as this is going to be one of those posts that only half of my readership will understand. Anyway, about three blocks from where I worked before taking my current babysitting job, there's a big summer concert series called "Innsbrook After Hours." The main acts are all relatively big names, if sometimes from a decade ago -- there's Blues Traveler, Ashlee Simpson, The Wailers (obviously sans Bob Marley), Rick Springfield, Dwight Yoakam, etc. But here's the weird part: Six opening acts who have been announced, and four of them have something interesting in common:

* Ashley Cleveland
* John Fetherston Band
* Ashley Parker-Angel
* Lost Dogs
* Chris Rice
* Phil Keaggy

Hmm.