Maroon 5 announced Monday they are preparing to launch an extensive summer tour of the US and Canada with alternative rockers Train co-headlining.  The trek is set to kick off July 22nd in Chula Vista, California and is currently scheduled to wrap September 24th in The Woodlands, Texas, just outside of Houston.  Matt Nathanson and Gavin DeGraw will provide support on all dates.  Click Here for a list.