Cajun Crawfish Festival: Celebrate Cajun-style with music from Leroy Thomas & the Zydeco Roadrunners, Curley Taylor & Zydeco Trouble. and more. There will be crawfish and ales on draft starting at 5 p.m. at Cajun Cafe on the Bayou, 8101 Park Blvd., Pinellas Park. $10 today or $25 for a three-day ticket. (727) 546-6732; www.cajuncafeonthebayou.net.
Zombie Bash: The undead will be haunting the State Theatre and digging a $5 metal show with Dementia, Supavyllenz, Scar City and L.I.E.S. There will be a costume contest, a zombie photo booth and more. It's 7:30 p.m. at 687 Central Ave., St. Petersburg.
Friday Extra concert series: Pull up a blanket at Curtis Hixon Park in Tampa for this week's respite show with O Som do Jazz, LaRue Nickelson and Jeremy Powell starting at 7 p.m. Free.
Janis Ian: One of America's great female songwriters brings her passionate and powerful folk and contemporary songs to the Capitol Theatre, 405 Cleveland St., Clearwater, at 8 p.m. $29.50-$43. (727) 791-7400.
KIDS AND FAMILY
Flick n Float: Bring your favorite float to this special spring break edition summer series. Just float around in the (heated!) pool while you enjoy baseball-themed games, hotdogs, contests, crafts and a viewing of the film The Final Season at 7:15 p.m. It starts at 5:30 p.m. at Southwest Recreation Complex and Pool, 13120 Vonn Road, Largo. $15 five people, $10 five residents. (727) 518-3126.
Who Do You Think You Are? 8 p.m., NBC: Gwyneth Paltrow wants to find out who her ancestors are. Annoying thin people who barely survived because of their macrobiotic diets, we're guessing.
SERIES PREMIERE, Camelot, 10 p.m., Starz: It's like similar period dramas Spartacus and The Tudors, but with rounder tables and more swords in stones.
The Special Olympics Family Festival that was scheduled for Saturday at Curtis Hixon Park has been postponed. No new date has been set.
MORE TO EXPLORE
It's time to plan out your summer camps for kids. Get a start at tampabay.com/things-to-do.