The following comes from the official Facebook page for the Red Hot Chili Peppers:
Red Hot Chili Peppers are co-headlining Orion Music and More in Detroit, Michigan on June 8-9, 2013.
Tickets on sale Friday, March 1st at 10am. Details: http://redhotchilipeppers.com/news/407-orion-music-more
You can view the poster of all the acts for the Orion Music and More festival below: