Mayor's River O'Green Fest: Once again, Tampa celebrates St. Patrick's Day by dyeing the Hillsborough River with a bright green, bio-degradable dye. In addition, there will be live music, Irish dancing, beer, food, the River O' Green Gallop, Shamrock Scavenger Crawl and a leprechaun costume contest. 11 a.m., Curtis Hixon Park, 600 N Ashley Drive, Tampa. Free. (813) 274-8854.
St. Patrick's Day MacDinton's St. Pete: Downtown St. Pete's Irish pub throws a party with Irish dancers, bag pipers, traditional Irish food, DJ dancing and green beer. The party goes on until 3 a.m. 10 a.m., MacDinton's Irish Pub St. Petersburg, 242 First Ave. N, St. Petersburg. No cover. (727) 201-9783.
Bay Area Renaissance Festival: Shamrocks and Shenanigans: 10 a.m., Museum of Science and Industry (MOSI), 4801 E Fowler Ave., Tampa. $21.95, $17.95 seniors/students, $13.95 ages 5-12, 4 and younger free. (813) 983-0111.
St. Patrick's Day Party at MacDinton's SOHO: Make sure to sport your green because MacDinton's claims to be "the place to be seen in your green" at this party with corned beef hash, Irish bagpipers, DJ dancing and live entertainment. The party goes on until 3 a.m. 11 a.m., MacDinton's Irish Pub, 405 S Howard Ave., Tampa. TBA. (813) 251-8999.
Irish Festival: O'Keefe's cranks it up another notch and turns St. Patrick's Day into an Irish Festival with Irish drinks, bagpipers, Highland dancers, over sized lawn games and live music. The party runs until 1 a.m. Friday and 2 a.m. Saturday. 11 a.m., O'Keefe's Tavern and Grille, 1219 S Fort Harrison Ave., Clearwater. $5, children free. (727) 442-9034.
St. Paddy's Day Block Party: The 300 block of Corey Avenue hosts a giant, outdoor St. Patrick's Day party with a cornhole tournament (noon), live music by Tropical Disturbances (1-5 p.m.) and Rhythm and Boone (5-11 p.m.), food trucks, corned beef and cabbage, green beer, face painting and a dance party. 11 a.m., Corey Avenue, 300 Block of Corey Avenue, St. Pete Beach. Free. (727) 363-7944.
Busch Gardens Food and Wine Festival: Olga Tanon: The annual festival runs weekends noon to 9 p.m. through April 29 with concerts starting at 7 p.m. on Saturdays and 6 p.m. on Sundays. You'll find sample size portions of gourmet food, wine and cocktails, horticultural masterpieces and festival-related games throughout the park, along with a lineup of pop, country and rock concerts. Latin pop megastar that has originated from Puerto Rico that has earned two Grammys, three Latin Grammy's and 29 Premio Lo Nuestro Awards will perform a fusion of tropical music. Noon, Busch Gardens, 10165 N McKinley Drive, Tampa. $104, 2 and younger free. Save $15 if you order online. (813) 884-4386.
Paddyfest: Car Bomb Wing Eating Challenge: Grab a Guinness draft and watch as competitors try to eat as many Car Bomb hot sauce topped chicken wings they can in three minutes. Winner takes home $250, prizes and a burning belly full of wings. 3:15 p.m., Irish 31, 1611 W Swann Ave., Tampa. $30 eaters, $20 street festival. (813) 250-0031.
Rough Riders St. Patrick's Night Parade: Krewes from across Florida celebrate St. Patrick's Day with beads, floats and more. Avoid crowds and bad parking situations by taking the trolley to the parade. 8 p.m., Downtown Ybor City, E Seventh Avenue and N 14th Street, Tampa. Free. (813) 248-1898.
Jason Mraz: The acoustic performer started in coffeehouse, but his two Grammy Awards for I'm Yours and I Won't Give Up have launched him into the spotlights of Mahaffey Theater. 8 p.m., Mahaffey Theater, 400 First St. S, St. Petersburg. $59.50-$126. (727) 893-7832; mahaffeytheater.com.
SoMo: R&B's most successful underground superstar will perform after the release of his second album The Answers. 8 p.m., The Orpheum, 1915 E Seventh Ave., Ybor City. $20-299. (813) 248-9500.
Doo Wop Reunion XVIII: Features doo wop artists including Bobby Rydell, The Crests and The Coasters. 7:30 p.m., Ruth Eckerd Hall, 1111 N McMullen-Booth Road, Clearwater. $45-$95. (727) 791-7400.
Marjorie Prime: Set in 2050, the futuristic play takes artificial intelligence to unforeseen levels, asking machines to help a family through losing a loved one by recreating that loved one. Through April 1. 3 and 8 p.m., American Stage Theatre Company at Raymond James Theater, 163 Third St. N, St. Petersburg. $39-$49; free for people under 20 years old, reservation required. (727) 823-7529.
O-Town: American boy band formed from the first season of MTV-produced reality TV show Making the Band in 2000 will perform. 8 p.m., The Attic, 1510 E Eighth Ave., Tampa. $30. (828) 773-9481.
Volta: The bendy people of Cirque du Soleil bring the Grand Chapiteau to Tampa to tell the tale of the freedom of choice and blazing your own trail in this new traveling show. Through March 18. 4:30 and 8 p.m., Greyhound Track, 8300 N Nebraska Ave., Tampa. Starting at $37. Toll-free 1-877-924-7783.
Jay Mohr: The Saturday Night Live alum went on to have numerous television and film credits, including starring opposite Tom Cruise in Jerry Maguire. Nowadays, he's the host of the popular podcast, Mohr Stories. 7:30 and 10 p.m., Improv Comedy Theater, 1600 E Eighth Ave., Tampa. $30. (813) 864-4000.
Quix: Popular New Zealand musical artist. 9 p.m., Coconuts Comedy Club at Shephard's Beach Resort, 619 S Gulfview Blvd., Clearwater Beach. $10-$15. (727) 360-5653.
KIDS AND FAMILY
Spring Family Day: Families can get their hands dirty with make and take art activities, face painting, cookie decorating and photos in a do-it-yourself photo booth. 10 a.m., Morean Arts Center, 719 Central Ave., St. Petersburg. Free. (727) 822-7872.
MORE TO EXPLORE
Find more St. Patrick's Day events at tampabay.com/things-to-do.