All-island band The Great Divide will play the final show of the Concerts in the Park series from 7 to 9 p.m. Thursday, at Ober Park. Formed in the early 1980s, the band played locally for many years before landing a touring gig with blues guitar great Elvin Bishop. No strangers to big crowds — 20,000 in the Tacoma Dome — the band has opened for the likes of Charlie Daniels, Asleep at the Wheel and many other well-known acts. The group plays a mix of country rock, Texas swing and classic rock.