Queens of the Stone Age: The metal group known for their outrageous sets will perform with experimental singer/songwriter Chelsea Wolfe. Concert starts at 7:30 p.m. at the Mahaffey Theater, 400 First St. S, St. Petersburg. $40.50-$66.50. (727) 893-7832.
Susannah: In one of the most popular American operas, an innocent mountain girl is accused of sinful behavior by the church-going elders of the town. See it at 7:30 p.m. at the Palladium Theater, 253 Fifth Ave. N, St. Petersburg. $21.50-$64.50. (727) 823-2040.
Target Tuesday: The hands-on Glazer Children's Museum offers free admission to everyone from 2 to 7 p.m. at 110 W Gasparilla Plaza in Tampa. Free. (813) 443-3861.
Disenchanted!: Snow White, Sleeping Beauty, Cinderlla and other princesses join forces to air their grievances with Mr. Disney in this satire. See it at 7:30 p.m. in the Jaeb Theater at the Straz Center, 1010 N MacInnes Place, Tampa. $40. (813) 229-7827.
SEASON FINALE The Biggest Loser, 9 p.m., NBC It's time for a reunion and one last weigh-in. So the big loser really will be the big winner of $250,000? And an eliminated contestant wins a $100,000 at-home prize? Weight Watchers might want to look into these incentives.
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Florida State Fair: New this year at the 110th annual fair: the largest traveling roller coaster in North America; food such as the Ramen Noodle Burger and Bacon Maple Funnel Cake; and FUNCARDs, prepaid cards that replace paper tickets for rides. It opens Thursday and runs through Feb. 17 at the Florida State Fairgrounds in Tampa. Admission prices vary by day, but you can get a deal if you buy in advance at floridastatefair.com or at Walgreens by Wednesday. Parking is free.
Let Mozart whisk you to the land of enchantment in The Magic Flute, part of the Florida Opera Festival at the Straz Center in Tampa. It's Friday and Sunday. Sung in German with English supertitles. $34.50-$84.50. (813) 229-7827.
Kenny Loggins: In the '80s he gained popularity as the movie soundtrack king, with I'm Alright (Caddyshack), Footloose (Footloose) and Danger Zone (Top Gun), but he has been creating soft rock since the '70s. His show is Saturday at Ruth Eckerd Hall in Clearwater. Pablo Cruise will open. $55-$95. (727) 791-7400.