On their current tour, Aerosmith's Joe Perry is offering 20 chances for you to get his guitar from the stage, get it autographed, and have a private meet and greet at the show.  Well, Aerosmith is at Tinley Park in Illinois tomorrow night, and as of now the prize is not purchased yet.  If you have $7,000 and want a unique experience, go to the www.guitaroffmyback.joeperry.com website and purchase the whole package.  You'll get 2 great seats at the concert, a meet and greet for you and a guest, the autographed guitar, certificate of authenticity, a guitar pick and the set list from that night.  Of the 20 chances on this tour that this prize can be purchased, so far only 7 have been purchased ... he did the first one last week in Boston.