Gordon Lightfoot: Legendary singer-songwriter. 8 p.m., Capitol Theatre, 405 Cleveland St., Clearwater. $49-$70. (727) 791-7400.Valentween Rock Drop: St. Pete Rocks invites artists and crafters of all ages to paint a rock representing dark romance and leave it at any park in St. Petersburg for others to find. 8 a.m., Fossil Park & Willis S. Johns Center, 6635 Dr. Martin Luther King Jr. St. N, St. Petersburg. Free. (727) 821-5759.Gulfport Tuesday Fresh Market: Live music, vegetables and fruit, baked goods, herbs and more. 9 a.m., Gulfport, along Beach Boulevard, Gulfport. Free. (727) 902-2326.Dunedin Mardi Gras: One of the largest Mardi Gras celebrations in the state in its 27th year. It starts at 4 p.m. with a food truck court, vendors and live music by Danielle Mohr and the Moonlight Madness, Edge of Red and Gumbo Boogie. The parade begins at 7 p.m. starting at the Florida Auto Exchange Stadium and travels north along Douglas Avenue to Skinner Boulevard. 4 p.m., Downtown Dunedin, along Main Street, Dunedin. Free. (727) 437-3569.James E. Rooster Parade: In celebration of Fat Tuesday, join a New Orleans style jazz memorial procession (known as the Rooster Funeral) and follow the casket of James E. Rooster, Ybor’s famous rooster who was killed by a dog in 1997. 5:30 p.m., The Dirty Shame, 1929 E Seventh Ave., Tampa. No cover. (813) 247-7930.True Stories: Audience members tell true, personal stories in five minutes or less. No notes or props allowed. February’s theme is "flames." Bring stories of love (new and old), getting burned or emotional devastation. 7 p.m., Hawthorne Bottle Shop, 2921 Central Ave., St. Petersburg. $5. (917) 442-0292.Natural History Speaker Series: Raptors on the Move: Learn about a different topic in nature each month. In this portion, trace the 10,000-mile journey of a swallow tailed kite. 7:30 p.m., Boyd Hill Nature Preserve, 1101 Country Club Way S, St. Petersburg. Free. (727) 893-7326.Forever Plaid: Four young singers killed in a car crash posthumously hit the stage for one last performance full of barbershop quartet harmonies and 1950s nostalgia. 7:30 p.m., Jaeb Theater at the Straz Center for the Performing Arts, 1010 N MacInnes Place, Tampa. $42. (813) 229-7827.KIDS AND FAMILYFlorida State Fair: Senior Day: Highlights this year include rides, food, exhibits, animals, shopping, rodeos and a candy exhibition. Seniors get in for $9 at the gate. It’s also Hungry Howie’s Family Night. Two adults and two children get admission and rides for $50. Present a coupon from Hungry Howie’s and take an additional $5 off. 10 a.m., Florida State Fairgrounds, 4802 U.S. 301 N, Tampa. $13, $7 ages 6-11, $9 seniors; $35 anyday armband; $25 weekday armband. (813) 740-4640.TO WATCHSERIES PREMIERE: The Bachelor Winter Games, 8 p.m., ABC: In the premiere, 25 bachelors and bachelorettes meeting in Manchester, Vt., for a celebration of unity and love. There will probably be drama and tears involved.MORE TO EXPLOREFind ideas for Valentine’s Day at tampabay.com/things-to-do.