Weekend event picks, April 18-20

From left: A lantern on view at “The Shot Heard Round the World” (Concord Museum); The Swan Boats open for the seaon Saturday (David L. Ryan, Globe Staff); “The Barefoot Designer” is at the Gardner (Ramiro Chaves)
From left: A lantern on view at “The Shot Heard Round the World” (Concord Museum); The Swan Boats open for the seaon Saturday (David L. Ryan, Globe Staff); “The Barefoot Designer” is at the Gardner (Ramiro Chaves)

Making plans? Short on ideas? No worries. See June Wulff’s picks for the top things to do around the Hub this weekend.

FRIDAY

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WHAT A DAY Be a part of April 19, 1775 when you follow a timeline of events for British Regulars and Patriots at “The Shot Heard Round the World: April 19, 1775.” The exhibit includes a letter written by John Hancock on April 18 at 9 p.m. Check out “From Dawn to Dead of Night: Revolutionary War Encampment” (April 18 and 19) and “Patriots’ Day at the Concord Museum” (April 21). April 18, 9 a.m.-5 p.m. (through Sept. 21). $10, $8 students and seniors, $5 ages 6-18 (encampment is free). Concord Museum, intersection of Lexington Road and Cambridge Turnpike, Concord. 978-369-9763. www.concordmuseum.org

WALK THE WALK After our rotten winter, we are happy to tell you about National Park Week which kicks off with “The Arnold Arboretum: Where the Wild Things Are.” The 90-minute guided walk covers creatures, co-designers Frederick Law Olmsted and horticulturist Charles Sprague Sargent, and completes the journey at the top of Bussey Hill where you can look for constellations. April 18, 7:30 p.m., rain or shine. Free. Meet in front of Hunnewell Building, 125 the Arborway, Boston. 617-566-1689, ext. 206. www.nps.gov/frla

MAKE A WISH AND TAKE A BITE Magic mirror on the wall, who is the funniest one of all? That’s a no brainer, it’s Ryan Landry and his Gold Dust Orphans who are ready to sprinkle songs, sarcasm, and shenanigans in their new parody “Snow White and the 7 Bottoms.” Another no brainer, Landry plays the Evil Queen. April 18-19, 8 p.m. April 20, 5 p.m. (through May 18; adults only). $39, $49. Machine, 1254 Boylston St., Boston. 800-838-3006, www.facebook.com/golddustorphans

SIZING THEM UP Here’s a first for the Isabella Stewart Gardner Museum, a fashion exhibit titled “The Barefoot Designer : A Passion for Radical Design and Community .” Mexican artist and fashion designer, Carla Fernández, sizes someone up by how they dress (their “code”), and uses a method called “the Square Root,” a Mexican tradition of designing clothes with squares and rectangles. Through Sept. 1. Wed-Mon 11 a.m.-5 p.m., Thurs until 9 p.m. April 19, 1 p.m. talk with the artist, reservation required. $15; $12 seniors; $5 college students; free under 18, those named Isabella, U.S. military and families. Isabella Stewart Gardner Museum, 280 the Fenway, Boston. 617-566- 1401, www.gardnermuseum.org

SATURDAY

THEY’RE BACK For more than 130 years, oak-framed pontoons sheathed in copper have carried passengers on a peaceful ride around the Boston Public Garden lagoon. The Swan Boats pedal for the public after Mayor Martin J. Walsh takes the first ride with students from Boston Public Schools. April 19 at 10 a.m. (through Sept. 21). $3, $2.50 seniors, $1.50 ages 2-15. Boston Public Garden lagoon. 617-522-1966. www.swanboats.com

THEY ARE BLUE...GRASS Thirteen veteran and up-and-coming acts on the bluegrass scene converge on Club Passim for the two day “Down Home Up Here” Bluegrass Festival. Saturday performers include Andy Cambria & Wes Corbett, Hannah Shira Naiman, and the Surviving Kenneallys. Sunday’s line up features Cold Chocolate, Twisted Pine, and the Wes Corbett Trio. April 19 at 4 p.m., April 20 at 5 p.m. $15, $10 students. Club Passim, 47 Palmer St., Cambridge. 617-492-7679, www.passim.org

SUNDAY

ONE IF, TWO IF Every Patriot’s Day eve, those two iconic lanterns are celebrated at the Old North Lantern Ceremony. The evening includes a performance by the First Michigan Fife & Drum Corps, a reading of Longfellow’s “Paul Revere’s Ride,” a recitation of Paul Revere’s personal account of his ride, representatives from local colonial militia, and the Color Guard from the USS Constitution. April 20, 8 p.m. $30 (reservations recommended). Boston National Historical Park, 193 Salem St., Boston. 617-523-4848, www.oldnorth.com

HELLO, GOOD-BYE, VACATION A quote from Samuel “Screech” Powers, a character from “Saved by the Bell,” is how this pop/rock band from California got its name. The new release by Hellogoodbye is “(Everything is) Debatable,” and the band shares the bill with dream- and electro-pop Vacationer. April 20, 8 p.m. $15, $17 day of show. 18+. Brighton Music Hall, 158 Brighton Ave., Allston. 800-745-3000, www.ticketmaster.com