You should check to see if there's an internet pre-sale (check ticketmaster, then each one's official site). It's SO much easier ordering online during a presale (or even during the regular sale for acts that won't sell out quickly) than calling on the damn phone for hours... God I hated that! But this WILL sell out in minutes, so be prepared either way!

I've seen them both separately, and would love to see them together! I love'm both, they both put on great shows...