The last weekend in September is knocking on the door, and we’d better answer because there’s a whole lot going in.

Patrick Myers, lead singer of Queen tribute band Killer Queen. Photo by James Pike

It all starts Thursday at Merrill Auditorium with Killer Queen, a tribute band fronted by Patrick Myers doing his best Freddie Mercury. Killer Queen will delight and dazzle Queen fans, and you’ll find yourself singing along with “Bohemian Rhapsody” and performing the all-important stomp, stomp claps during “We Will Rock You.”

Nina reporting on a city council meeting in “Trusted Sources.” Photo courtesy of Trust Documentary

At the Lincoln Theater in Damariscotta at 6:30 p.m. Thursday, there’s a screening of the journalism documentary “Trusted Sources.” The film will be followed by a Q&A session with Maine journalists.

Avery Yale Kamila in the King Gallery at the Maine Historical Society Museum in Portland, where she has co-curated an exhibit about the state’s history of vegetarianism. Gregory Rec/Staff Photographer

If you’re curious about the history of vegetarianism in Maine, there’s an exhibit you should see at the Maine Historical Society Museum in Portland, open 10 a.m. to 5 p.m. Tuesday through Saturday. The Press Herald’s plant-based food columnist, Avery Yale Kamila, is the co-curator of “Maine’s Untold Vegetarian History,” and the fascinating exhibit lifts the lid off of the origins of vegetarianism in the state.

Works by Harlan Crichton in “36 Windows” at the Gingerbread House in Norway. Photo by Ben Troutman for Lights Out

There are two reasons to head to Norway, and they’re next door to each other. Lights Out Gallery is presenting “36 Windows” and “Marking Time: A Measure of Craft” exhibits through Oct. 13. “36 Windows” is a photography exhibit housed in a dilapidated Victorian Manse and “Marking Time: A Measure of Craft” is in a historic carriage house a few yards away.

Trinity Posey, Sam McLellan and Sam Nackman in the North American tour of “The Book of Mormon.” Photo by Julieta Cervantes

One of the most popular and successful musicals of recent history is “The Book of Mormon.” You can see a touring production at Cross Insurance Arena this weekend in Portland. There’s also a show Sunday in Bangor. You can also hit Biddeford Oktoberfest or the African Festival in Portland, both are on Saturday.

Pianist Miki Sawada. Photo by Nick Bruskewitz

Another worthy Saturday option is a free performance in Congress Square Park in Portland at 2 p.m. Portland Ovations presents a show by pianist by Miki Sawada. She’ll be joined by musicians from Listen Up! Music, a nonprofit day program and music studio.