Some of the artists I've seen in concert over the last 7 years include, Peter Noone, Davy Jones, The Moody Blues, Elvis Costello, Rockapella, The ReBeats, The Buckinghams, The Grass Roots, The Turtles, Lady Antebellum and Sarah Marince.
I think the best shows that I've seen weren't in big venues, but in smaller places, like The Palace Theater in Greensburg or The State Theater in Uniontown.
Gordon Lightfoot The Palace Theater 6/16/2010
Rockapella The Palace Theater 11/18/2008
Peter Noone Wheeling Island 8/29/2008
Lady Antebellum Fayette County Fair 8/2/2008
Nick Lowe and Ron Sexsmith Byham Theater 4/27/2008
Davy Jones Falconi Field 7/29/2006
Gary Puckett Hershey Park 6/4/2006
The Moody Blues Borgata 6/16/2006