Local bands Bushwood, Shy Bones, Arc of Silence and Chasing Crazy will get their grunge on when they pay tribute to Pearl Jam. Show starts 8 p.m. Saturday at Koot's, $5 (21 and older). Visit koots.com  for info.
Battle of the droids
The 2013 Alaska High School Robotics Championship will take place from 9 a.m. to 5 p.m. Saturday at the University of Alaska Anchorage Wells Fargo Sports Complex. Thirty-six teams from 20 schools across Alaska will compete to build robots and put them through time trials for specific tasks -- herding balls, lifting weights, stacking material and maneuvering through the test court. The public is welcome to attend and marvel in person or watch the action streaming live at fllalaska.com .
The annual spring break blowout at H2Oasis is going down Friday. This year it's called Snapbacks & Tattoos, featuring a contest for best tattoo. This installment of the electronic dance music festival features headliners Ultraviolet, Hyperfunk and Evenflo, 9 p.m. Friday, $30, $45 VIP (16 and older). Visit facebook.com/kskevents  for info.
Golden Heart City sounds
A couple Fairbanks bands take the stage at Tap Root this weekend. Ragtag folk outfit Feeding Frenzy joins the country-blues combo Annie Where the Sun Don't Shine. Opening the night is Anchorage singer-songwriter Michael Howard. The show starts 9 p.m. Friday, $5 (21 and older). Visit taprootalaska.com  for info.
The Alaska Aviation Museum is raising funds to fly its 1931 Fairchild Pilgrim this summer, and to that end the museum is hosting a beer tasting of eight different brews from Alaska breweries. The event also features live music by Lisa Good, plus food and an auction, 6-9 p.m. Friday, $45 or $40 for museum members (21 and older). Visit alaskaairmuseum.org  for info.