Steve Aoki: The cake-tossing party-starting electronic DJ will headline the venue's Halloween party, "Haunted Death Touch Hotel". 4 p.m., Beach Bar, 7700 Courtney Campbell Causeway, Tampa. $20-$40. (813) 281-8900.
MegaCon: Celebrity guests include Star Trek: The Next Generation star LeVar Burton and Henry Winkler of Happy Days fame as well as Doctor Who's David Tennant, Billie Piper. Also, Brent Spiner (Data in Star Trek: The Next Generation), Wallace Shawn (Vizzini in The Princess Bride), Verne Troyer (Mini Me in the Austin Powers films) and Mitch Pileggi (Walter Skinner on The X-Files). The convention boasts over 100,000 square feet of shopping madness, a place to watch professional comic artists battle it in the Sketch Duels and a horror film festival. 10 a.m., Tampa Convention Center, 333 S Franklin St., Tampa. $25-$45. (813) 274-8511.
John's Pass Seafood Festival: The 35th annual event with more than 100 seafood options. 10 a.m., John's Pass Village and Boardwalk, 150 John's Pass Boardwalk, Madeira Beach. Free (food/drink additional). (727) 322-5217.
Anything Goes: Songs from American Opera as well as operatic arias from well known operas of Italy, Germany and Russia. 3 p.m., Pinellas Park Performing Arts Center, 4951 78th Ave. N, Pinellas Park. Free. (727) 369-5746.
Tartuffe: An adaptation of Moliere's classic tale follows a wealthy businessman who entrusts his fortune to a con man posing as a political leader. Through Nov. 20. 3 p.m., American Stage Theatre Company at Raymond James Theater, 163 Third St. N, St. Petersburg. $39-$49. (727) 823-7529.
Tampa Bay Symphony: The theme for these fall concerts is "Forests and Folk Songs.".Featured will be Andrew Karr, assistant principal French horn of the Florida Orchestra. 4 p.m., St. Petersburg College Clearwater Campus Arts Auditorium, 2465 Drew St., Clearwater. $20; students free. (727) 827-8087.
Steinway Piano Concert Series: Duo Eleganza: The series brings premier international pianists to perform in the University of South Florida's music building and concert hall. An afternoon of gems from the duo-piano literature with works by Schubert, Brahms, Rachmaninov, Moszkowski, and Shchedrin. 4 p.m., University of South Florida Barness Recital Hall, 3755 W Holly Drive, Tampa. $15, $10 seniors/students. (813) 974-2311.
The Candy Factory: A grand opening event for a Willy Wonka-themed art exhibit and an interactive art installation that mimics his chocolate factory. Music by DJ Mega. 4 p.m., Bloom Art Center, 910 Fifth Ave. N, St. Petersburg. $7 in advance, includes 3D glasses.
Lizzie: Four women front a six-piece rock band to tell the story of Lizzie Borden with gallows humor. The New York Times called the gothic rock opera "deliciously watchable." Through Nov. 6. 4 p.m., Shimberg Playhouse at the Straz Center for the Performing Arts, 1010 N MacInnes Place, Tampa. $29.50. (813) 229-7827.
A Nightmare on Franklin Street: Carrie (1976): A Halloween series featuring 10 nights of classic horror films, family friendly spooky movies, creepy cult favorites, ghastly ghost tours and other surprises. 5 p.m., Misery plays at 7:30 p.m., Creepshow plays at 10 p.m., Tampa Theatre, 711 Franklin St., Tampa. Price varies by event. (813) 274-8982.
Kellogg's Tour of Gymnastics Champions: The biggest names in gymnastics make their only Florida stop in Tampa. Performers include the Olympic Final Five: Simone Biles, Gabby Douglas, Laurie Hernandez, Madison Kocian and Aly Raisman. Due to athletes' schedules and personal commitments, the cast will vary from stop to stop. Local gymnasts join the show at each stop. 6 p.m., Amalie Arena, 401 Channelside Drive, Tampa. $29-$299. (813) 301-2500.
WMNF Presents Todd Snider : The songwriter tours in support of his solo album Eastside Bulldog. Rorey Carroll opens. 6 p.m., Skipper's Smokehouse, 910 Skipper Road, Tampa. $20-$25. (813) 971-0666.
Peter Cetera: The Grammy-winning singer-songwriter and Rock and Roll Hall of Famer has had two distinct musical careers. One as a member of the legendary rock group Chicago from 1968 to 1986 and one as a solo artist. 7 p.m., Mahaffey Theater, 400 First St. S, St. Petersburg. $34.50-$89.50. (727) 893-7832.
Florida Orchestra Pops: Ray Charles, Motown and Beyond: Ellis Hall pays tribute to Ray Charles. 7:30 p.m., Ruth Eckerd Hall, 1111 N McMullen-Booth Road, Clearwater. $15-$45. Toll-free 1-800-662-7286.
KIDS AND FAMILY
Sesame Street Safari of Fun Halloween: Monsters and Fairies Weekend: Kids can join the fun of this Sesame Street themed party with trick-or-treat candy stations, arts and crafts and more. Noon, Busch Gardens, 10165 N McKinley Drive, Tampa. $99, $79 for ages 3-9. (888) 800-5447.
MORE TO EXPLORE
Find more events for the family at tampabay.com/things-to-do.