The Maine have announced the Free For All tour where each show will be 100% free for everyone who attends. If you would like to donate gas money to get the band to a particular show, you can do so here. In addition, the band will be performing select dates (that are not free) where the band will be performing their latest album American Candy in its entirety, plus a second set which will include songs from different points in their career.
You can find more information and the select paid dates here. You can find an announcement video below as well as a tour poster.