There's nothing better than seeing a great show by a great band. Unless it's two shows by two great bands. Summer 2014 has no shortage of great joint tours, some indoors and some at the big outdoor sheds. Over the years, I've caught some great traveling caravans; KISS and Motley Crue, Neil Young and Soundgarden, Dylan and Santana. I once saw the Violent Femmes open for the Grateful Dead. Surreal to say the least. We're hosting a Block Party Weekend for the holiday. Big blocks of rock to drink and grill by. Here are some of this summer's big co-headlining tours of 2014 to whet your whistle: