Florida Orchestra Masterworks: Gerard Schwarz leads the orchestra in Vaughan Williams' Dona Nobis Pacem (Grant Us Peace), on a program with Dvorak's Symphony No. 7. It's at 8 p.m. at the Straz Center in Tampa. $15-$45. (813) 229-7827.
Weezer: Twisted genius Rivers Cuomo and the power-pop gang perform at 8 p.m. at Mahaffey Theater in St. Petersburg. $29.50-$99. (727) 892-5798.
LeAnn Rimes: The singer hit it big in the '90s with songs like How Do I Live. See her at 8 p.m. at Ruth Eckerd Hall in Clearwater. $45-$75.
Cirque du Soleil's Kooza: The Grand Chapiteau is back for this show with traditional circus elements like clowns and daredevil acrobatics. It's at 7:30 p.m. outside Tropicana Field in St. Petersburg. $43.50-$143.50 adults; $33-$104.50 ages 2-12. 1-800-450-1480.
Ribfest: The annual event featuring award-winning ribs runs today through Sunday. Jonny Lang and Buddy Guy headline today's entertainment. Gates open at 11 a.m. at Vinoy Park in St. Petersburg. $20, 12 and younger free. (727) 528-3828.
Undercover Boss, 8 p.m., CBS The president of the Tilted Kilt chain has to work in one of his own stores. It'll be worth tuning in just to see if he wears the outfit.
• Ethel Kennedy is alive. An item in Thursday's Weekend is incorrect.
• The Tampa Bay Symphony concert is at 7:30 p.m. Saturday. Because of incorrect information provided to the Times, a different time was listed in Weekend.