International Santa Celebration: Nearly 300 professional Santas are in Tampa, and they're hosting a sleigh showcase with free rides on a cyber sleigh. Retired WWE wrestler Mick Foley will sign autographs. It's at noon at Doubletree Hotel by Hilton Tampa Airport, 4500 W Cypress St., Tampa. Free. (813) 230-9254.
TEDxTampaBay: Thinkers and doers from around the bay area join together for a "This is Big" talk, with topics including the importance of authenticity and how media is shaping psychological development. It starts at noon at Tampa Convention Center, 333 S Franklin St., Tampa. $30, $75 VIP. (813) 274-8511.
Gladys Knight: The seven-time Grammy-winning pop and R & B artist returns to support her latest album, Another Journey. Concert is at 8 p.m. at Ruth Eckerd Hall, 1111 N McMullen-Booth Road, Clearwater. $55-$150. (727) 791-7400.
Tales of Betrayal: The South Florida Lyric Opera presents a double bill of Leoncavallo's I Pagliacci and Gilbert and Sullivan's Trial By Jury. Show is at 7:30 p.m. at Carrollwood Cultural Center, 4537 Lowell Road, Tampa. $20-$30. (813) 269-1310.
Pablo Francisco: The comedian weaves together an array of characters, spontaneous outbursts, impressions and insights. See him perform at 8 p.m. at Improv Comedy Theater, 1600 E Eighth Ave., Tampa. $20. (813) 864-4000.
KIDS AND FAMILY
Disney on Ice: Let's Celebrate: More than 50 Disney characters celebrate an Unbirthday Party with Alice and the Mad Hatter, a Hawaiian luau with Stitch and a Halloween haunt with the Villians. Show is at 7 p.m. at Tampa Bay Times Forum, 401 Channelside Drive, Tampa. $12-$75. (813) 301-6500.
Grey's Anatomy, 9 p.m., ABC As staff bids farewell to Cristina (Sandra Oh), Seattle is rocked by what appears to be a terrorist attack. To which we can only say: Of course it is!
MORE TO EXPLORE
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