What to wear to a country concert?

My husband drums for an up and coming country band here locally. I am alot older than alot of the girls that throw themselves on the band members and I have seen a tacky girl wearing shorty shorts (aka: Daisy Dukes), wife beater, and boots hitting on my husband. I'm a Mom and am not into dressing that way (though I am 24 and have the features). What can I wear to the concert that's comfortable (concerts can get hot inside), pretty/tasteful, but doesn't scream "I'm looking for attention"? My Mom and in laws will also be at this show, as will my pre teen brothers in law and I want to be appropriate.