Seventh annual Pumpkin Patch and Pet Masquerade: Plump pumpkins for sale, decorations and pets in costumes, 5-8 p.m. with pet costume contest starting at 10:30 a.m. today; continues noon-8 p.m. Thursday-Friday, Hyde Park Village, 742 S Village Circle, Tampa. Benefits the Humane Society of Tampa Bay. Call (813) 774-4313.
Halloween Costume Ball: Put on your best costumes and dance until the midnight hour at the seventh annual event, 8 p.m.-midnight, Gulfport Casino, 5500 Shore Blvd. S. Featuring swing dance and costume contest with more than $250 in prizes and loads of trick-or-treat goodies. $7, includes dance lesson. Call (813) 274-4950.
Halloween Yappy Hour: Enter your pup in the Halloween costume contest, 6:30-8:30 p.m., downtown, Beach Boulevard area, Gulfport. Free. Call 322-5217.
The Rocky Horror Show: The rock 'n' roll musical that will not die, 7:30 p.m. Wednesday-Thursday; 7:30 and 11 p.m. Friday-Saturday, Tampa Bay Performing Arts Center, 1010 N MacInnes Place, Tampa. True to tradition for this campy classic, the late-night performances will encourage audience participation. Supplies available at the theater for $5. $31.50. Call (813) 229-7827 or check tbpac.org.
Halloween in the Park "Treats You Can Trust": Ghosts, goblins and ghouls converge for the annual Pinellas Park Halloween event, 6-10 p.m., Town Square Plaza Park, 5010 81st Ave. N. Includes a treat trail, costume contest for ages 3 and under, 4-7 years, 8-12 years and 13-17 years, and a best group category, where two or more people coordinate costumes to express a theme. The contest begins at 7 p.m. Free. Call 541-0721.
Spooktacular Halloween Bash: The city of Gulfport holds its annual event featuring games, a costume contest, haunted house, Boo Room for tots, snack shack and Halloween movie at the end of the night, 7-9 p.m., Gulfport recreation center, 5730 Shore Blvd. S. Call (727) 893-1068.
Fabulous Final Friday: Halloween-themed games for kids with pizza and candy available, 6-8 p.m., St. Pete Beach Community Center, 7701 Boca Ciega Drive. Advanced registration required. 6-8 p.m. $6.50. Call 363-9245.
Halloween Art Party: Exhibit and Halloween costume party, features art, a costume contest (best Andy Warhol), drinks and hors d'oeuvres, 8 p.m.-midnight, Art Pool, 919 First Ave. N, St. Petersburg. $10 includes drinks and hors d'oeuvres. Call 324-3878 or check artpoolrules.com.
Fetish and Fantasy Halloween Ball: The popular Fetish and Fantasy ball comes to Tampa Bay, 8 p.m., Cuban Club, 2010 Avenue Republica De Cuba N, Tampa. Music by Scooter and LaVelle, John Debo, DJ Scotty Boy, Vegas Vandals and Curse Mackey. $45. Call (813) 248-2954.
Florida Orchestra: Super Pops concert featuring "A Musical Spooktacular," 8 p.m., Mahaffey Theater, 400 First St. S, St. Petersburg. $19-$65. Call 1-800-662-7286 or check Floridaorchestra.org.
Witchstock: Woodstock and Halloween meet at this costume-oriented event with cash prizes for adults, 3 p.m.-midnight, Downtown Palm Harbor, along Florida Avenue. Free. Call (727) 483-9210 or check TheWitchsBrew.com.