Jack FM welcomes Def Leppard and Heart to Darien Lake on August 21st. Tickets go on sale this Saturday at 10 am at livenation.com. You can also charge by phone at 1-800-745-3000. And if you are too cheap to buy tickets sign up to win them from Jack FM here. Since we're pretty psyched about this show we thought we would do a special artist spotlight of the band and post some of our favorite videos. Tomorrow, we'll post some of our favorite Heart videos.