Zedd: One of EDM's brightest young stars is known for hits like Clarity and Stay the Night. Dillon Francis and Alex Metric open. 7:30 p.m., University of South Florida Sun Dome, 4202 E Fowler Ave., Tampa. $27.50-$50. (813) 974-3004. Rattlesnake Festival: It's all about snakes at this festival with wildlife shows and exhibits, arts and crafts, live entertainment and more. 9 a.m., San Antonio City Park, 32810 Pennsylvania Ave., San Antonio. Free admission. (352) 588-4444.
Autumn Harvest: Activities for the entire family at this old fashioned fall celebration. 10 a.m., Pinellas Pioneer Settlement, 2900 31st St. S, St. Petersburg. Free. (813) 500-7708.
Cassette Store Day: Inspired by Record Store Day, this is the third year that the music industry celebrates the cheap and easy way to share a mix tape. Green Day is releasing its landmark Dookie on tape in celebration, as are other national artists. Daddy Kool will be giving out free copies of Viva La Records Mixtape Vol. 1, a collection of songs by Tampa Bay artist. 10 a.m., Daddy Kool, 666 Central Ave., St. Petersburg. Free. (727) 822-5665.
Chillin' Music Fest: Reggae-rock vibes will take over downtown Tampa with national and regional acts including headliners O.A.R, as well as Ballyhoo!, Hor!zen, UNRB, Resinated and more. 11 a.m., Curtis Hixon Park, 600 N Ashley Drive, Tampa. $30-$110 advance, $50-$150 at the gate. Toll free 1-888-810-2063.
Zombie Pub Crawl: Dress like a zombie and shuffle with the hoard in this five stop crawl with drink specials at each stop. Benefits Make-a-Wish. 4 p.m., The Hyde Out, 1809 W Platt St., Tampa. $20, $50 VIP. (630) 926-3959.
Tab Benoit: The guitarist who combines a number of blues styles performs back-to-back nights. 8 p.m., Skipper's Smokehouse, 910 Skipper Road, Tampa. $20-$25, $35 both days. (813) 971-0666.
Shaun Hopper: The finger-style acoustic guitarist infuses his sound with a percussive element, as well as alternative, new age, pop, classical, jazz, folk and Irish undertones. 8 p.m., Carrollwood Cultural Center, 4537 Lowell Road, Tampa. $18-$24. (813) 269-1310.
Monster Mash Costume Party: Artistic costumes are required for the gallery's combination Halloween and Day of the Dead party with music by the Vultures, dancing, a costume contest, a Dia De Los Muertos runway show, living canvas body art show and burlesque. 8 p.m., ARTpool Gallery, 2030 Central Ave., St. Petersburg. $15, $20 VIP. (727) 324-3878.
Noah Gunderson: The acoustic, indie-folk singer-songwriter is known for hits including, Ledges and Family. 9 p.m., Crowbar, 1812 N 17th St., Tampa. $15-$17. (813) 241-8600.
KIDS AND FAMILY
Free Flights for Kids: Kids ages 8 to 17 can get the ride of their life when certified pilots take them up, up and away during International Young Eagles Day. 10 a.m., Albert Whitted Airport , 540 First St. SE, St. Petersburg. Free. (727) 822-1532.
SPECIAL Amy Schumer: Live at the Apollo, 10 p.m., HBO. The new standup special has the country's hottest comedian bringing her unapologetic humor to the iconic New York theater. The program was directed by Chris Rock.
MORE TO EXPLORE
Find more Halloween events at tampabay.com/things-to-do.