Celebrating 35 years of summer concerts, the Oregon Zoo is stepping it up a notch in 2013.

Featuring a wide variety of world-class acts, the Oregon Zoo Summer Concert series kicks off June 22 in Portland with folk legend John Prine. Running through September, the lineup includes Old Crow Medicine Show, “Weird Al” Yankovic, The Doobie Brothers and Trombone Shorty & Orleans Avenue with JJ Grey & Mofro.

“Nothing says summer in Portland like a warm evening on the zoo concert lawn, listening to some amazing music,” said Kim Smith, the zoo’s director. “And the best part is these concerts benefit the zoo’s programs for animal welfare, education and conservation.”

For the first time, a concert ticket also includes zoo admission anytime during the day of the show (no readmission after 7 p.m.), so ticket holders can check out the 260 species of birds, mammals, reptiles, amphibians and invertebrates on display during the morning, then leave the zoo grounds and return for the concert in the evening, according to organizers.

Tickets are currently on sale and range from $22 to $52.50, plus service fees. Reserved seating is limited and has sold out for several concerts, so advance purchase is recommended. For tickets and more information, visit www.zooconcerts.com or call 503-226-1561.

At left is the complete lineup for 2013, with ticket prices included. Concerts start at 7 p.m., and the schedule is subject to change.