What's better than one classic rock band from Illinois? Why, two classic rock bands from Illinois of course. REO Speedwagon and Chicago have joined forces for a co-headlining tour which will run for the month of August. Both bands careers have spanned the decades, selling countless millions of records between them. Chicago's commercial peak came with 1976's Number 1 single If You Leave Me Now, while REO are maybe most well known for their power-ballad Can't Fight this Feeling Anymore, which has been covered by everyone from Russell Brand (in the movie Rock of Ages) to Glee.

The two groups will be performing their own mini-sets before joining together for the encore. The only problem will be choosing which tracks to pluck from their two mammoth catalogues.