Tom Petty & the HeartbreakersShare on TwitterShare on FacebookAugust 31, 2014 | 7:30 pm - 11:00 pmCumberland County Civic Center1 City Center, Portland, ME 04101 United StatesEvent Website: http://www.theciviccenter.com/events/tom-petty-and-heartbreakersAdditional InformationWith special guest Steve Winwood