Tropical Heatwave: This year's lineup showcases more than forty bands on ten stages spread throughout the heart of Ybor City. Line-up features indie-rockers Ra Ra Riot, R & B vocalist Nikki Hill, alt-folk group Geri X, CelloJoe and teenage blues by the Peterson Brothers. 5 p.m., Ybor City, 1700 E Seventh Ave., Tampa. $35. (813) 238-8001.
Father John Misty: The erstwhile indie-folk rocker, Josh Tillman embarks on a month long spring tour. Tickets on sale through thesocial.org. 6 p.m., The Beacham, 46 N Orange Ave., Orlando. $25-$38. (407) 246-1419.
Purple Rain: In remembrance of Prince, Tampa Theatre shows a free screening of Purple Rain, the story of an up and coming rock star who uses music to escape the reality of his abusive family. 9 p.m., Tampa Theatre, 711 Franklin St., Tampa. Free. (813) 274-8982.
Tampa RiverFest: Locations along the 1.8 mile path will offer different activities, kid's play zones, pet-friendly activities, dragon boat races, music, food and drink. Free concert by the Spam Allstars, Jacuzzi Boys, Selwyn Birchwood and more. 8 a.m., Curtis Hixon Park, 600 N Ashley Drive, Tampa. Free. (813) 221-3686.
Fun 'n Sun: Live Love Local Fest: More than 150 local businesses, vendors and makers join with a battle of the bands and acoustic stage performances at this festival to benefit the Humane Society of Pinellas. 10 a.m., Coachman Park, 301 Drew St., Clearwater. Free. (727) 562-4670.
Discover the Food Festival: Get a taste of the best foods in Tampa Bay, in a new twist on the annual Food Truck Festival, as craft beers from Coppertail Brewing are featured, with brewers on hand to provide pairing advice. 11 a.m., Florida State Fairgrounds, 4802 U.S. 301 N, Tampa. Free admission, charge for food and beverages. $6 parking for cars, $12 buses, RVs, cash only. (813) 621-7821.
Spring Concert: The performance from St. Petersburg Ballet Company includes Act II from Swan Lake, Shostakovich and Cakewalk, a throwback to the 1900s in Williams Park. 7:30 p.m., Palladium Theater, 253 Fifth Ave. N, St. Petersburg. $20, $15 students and seniors. (727) 822-3590.
Boston: It's a party, party, party as the rock band embarks on their 40th anniversary tour. 8 p.m., Ruth Eckerd Hall, 1111 N McMullen-Booth Road, Clearwater. $50.50-$126. (727) 791-7400; rutheckerdhall.com.
Spamalot: The American Stage in the Park production of the Tony Award-winning musical based on the Monty Python parody of the legend of King Arthur. No alcohol or pets are allowed, but concessions (including alcohol) will be available. Through May 8. 8 p.m., Demens Landing, 100 First Ave. SE, St. Petersburg. $25-$38. (727) 823-7529.
Frank Caliendo: The comedian and impressionist's versatility has taken him from starring on madTV, his own series Frank TV, to hosting Fox's NFL Pre Game Show and ESPN's Sunday NFL Countdown, all of which influence his live performances. 8 p.m., Capitol Theatre, 405 Cleveland St., Clearwater. $35-$48.50. (727) 791-7400.
Mr. Burns: In this "post-electric" play, the few survivors left to rebuild after a cataclysm due to grid failure attempt to remember the details of an episode of The Simpsons. As time goes on, iconic pop culture becomes mythology. Through May 22. 2 and 8 p.m., Freefall Theatre, 6099 Central Ave., St. Petersburg. $21-$48. (727) 498-5205; freefalltheatre.com.
The Maids: A Jobsite Theater production of the 1947 play by French novelist Jean Genet. It was inspired by a famous 1933 French murder trial of two sisters, employed as maids, who gruesomely killed their employer and her adult daughter. Through May 22. 8 p.m., Shimberg Playhouse at the Straz Center for the Performing Arts, 1010 N MacInnes Place, Tampa. $28. (813) 229-7827.
Beautiful - The Carole King Musical: The Tony Award-winning show about Carole King's rise to fame features her most memorable songs, including "I Feel the Earth Move," "Natural Woman," and "You've Got a Friend." Through May 1. The Thursday, April 28, 7:30 p.m. show will be sign language interpreted. 2 and 8 p.m., Carol Morsani Hall at the Straz Center for the Performing Arts, 1010 N MacInnes Place, Tampa. $55-$135. (813) 229-7827.
Florida Orchestra Masterworks Series: Beethoven's Eroica Symphony: Under the direction of Michael Francis, the orchestra presents City Noir (Adams) and Symphony No. 3 "Eroica" (Beethoven). 8 p.m., Mahaffey Theater, 400 First St. S, St. Petersburg. $15-$45. (727) 892-3337.
Steel Panther: Formed in the '80s, the hair-metal humorists are still touring as they parody the stereotypical 1980s "glam metal" lifestyle. 9 p.m., Jannus Live, 200 First Ave. N, St. Petersburg. $24 and up. (727) 565-0550.
KIDS AND FAMILY
El Dia Del Nino (Children's Day): The bilingual festival saluting children and families includes traditional Latin music, folkloric dances and more. 10 a.m., Downtown Clearwater, On Cleveland Street between S Lincoln and Missouri avenues, Clearwater. Free. (727) 562-4047.
The 2016 Rock and Roll Hall of Fame Induction Ceremony, 8 p.m., HBO. The celebration of music royalty is mixed with some occasionally interesting speeches. This year's inductees are Cheap Trick, Chicago, N.W.A., Steve Miller and Deep Purple.
MORE TO EXPLORE
Find weekend events for the whole family at tampabay.com/things-to-do.