Steely Dan and Elvis Costello: Known for hits including Do It Again, Reelin In the Years and Rikki Don't lose That Number, Steely Dan will be joined by fellow '70s rocker Elvis Costello, who will mix up the set list, possibly playing Alison and Radio Radio. Imposters open. 7 p.m., MidFlorida Credit Union Amphitheatre at the Florida State Fairgrounds, 4802 U.S. 301 N, Tampa. $39-$129. (813) 740-2446. Clothing Swap: Bring up to five used garments to exchange for vouchers to use on garments brought in by other participants. Vouchers may be purchased for $3 each. Takes place in the courtyard next to the Peninsula Inn. 9 a.m., Art Village Courtyard, 29th Avenue S and Beach Boulevard S, Gulfport. Free with items to swap, $3 without. (727) 902-2326.Balcony-to-Backstage Tours: This guided tour of Tampa Theatre, built in 1926, includes demonstration of Mighty Wurlitzer Theatre Organ and the old movie house's secrets, stories, art and architecture. 11:30 a.m., Tampa Theatre, 711 Franklin St., Tampa. $7.50, $5 ages 2-12, Tampa Theatre members/one and younger free. (813) 274-8982.Bucs Training Camp : Watch free Bucs practices with on field autograph sessions for children ages 12 and younger. New this year is a kid zone area with interactive football skills stations, face painting and a dunk tank. Parking is free. 2:30 p.m., One Buc Place, 1 Buccaneer Place, Tampa. Free. (813) 870-2700.Tampa Bay Rays: Vs. Braves: 7:10 p.m., Tropicana Field, 1 Tropicana Drive, St. Petersburg. Ticket prices vary by game. Toll-free 1-888-326-7297.KIDS AND FAMILYChildren's Summer Series: Puss In Boots: Get the kids out of the house for this series of affordable family movies. In Puss In Boots (PG), learn how the sword fighting cat meet up with Shrek and his friends. 11 a.m., Studio Movie Grill 14, 12332 University Mall Court, Tampa. $3. (813) 241-3800.TO WATCHAmerica's Got Talent, 8 p.m., NBC. We're down to the live rounds. Tonight, 12 members of the Top 36 take the stage at Radio City Music Hall and try not to flop. MORE TO EXPLOREFind your new favorite restaurant at tampabay.com/things-to-do.