Plan your weekend
Mike Mills and Robert McDuffie: One of the founders of R.E.M., Mills has created a classical collaboration with violinist Robert McDuffie. Their ensemble of string and rock musicians will perform Concerto for Violin, Rock Band and String Orchestra at 8 p.m. Friday at the Mahaffey Theater, 400 First St. S, St. Petersburg. $49 and up. (727) 892-5767. themahaffey.com.
Halloween parties: You'll find Fantasma Fest in Ybor City this weekend, where Saturday brings the Big Monsters Bed Bash and Sunday brings a Classic Car Show, both 2-6 p.m. at the Italian Club, 1731 E Seventh Ave., Tampa. At Busch Gardens, the new Sesame Street Halloween party will have trick-or-treat stations, a hay bale maze, hourly parades and character appearances. Included with admission: $99, $79 kids. Noon-2 p.m. Saturday-Sunday.
Stone Crab Weekend: The annual Stone Crab Weekend Block Party at Frenchy's Cafe on Clearwater Beach marks the opening weekend of stone crab season with music, food and drinks. A big tent will be set up for the block party at the original Frenchy's Cafe at 41 Baymont St. from noon-10 p.m. Friday and Saturday.
Take the kids
MarineQuest and Science Festival: See science experiments up close at MarineQuest, the annual open house at the Florida Fish and Wildlife Research Institute. The University of South Florida St. Petersburg also is hosting the St. Petersburg Science Festival. Free. It runs from 10 a.m.-4 p.m. Saturday at the Fish and Wildlife Institute, 100 Eighth Ave. SE, and on the USFSP campus, 140 Seventh Ave. S, St. Petersburg.
Tampa Pig Jig: The Tampa Pig Jig at Curtis Hixon Waterfront Park expects to have its biggest year yet with headliner O.A.R. and 50 teams competing in a barbecue competition. $30 advance, $40 day of at tampapigjig.com; 12 and younger are free. It runs 1-10 p.m. Saturday at 600 N Ashley Drive, Tampa.
Clearwater Beach Chalk Art Festival: It's free to see the work of more than 40 chalk artists along the Beach Walk this weekend. 9 a.m.-6 p.m. Friday-Saturday, 9 a.m.-2 p.m. Sunday at the Beach Walk, 301 S Gulfview Blvd., Clearwater.
Daddy Kool Zine Fest: The self-published "zines" — mini magazines of text or artwork — are often associated with the punk rock, DIY movement. Most zines run just $2-$6 each, and there also will be food trucks and free beer from New Belgium Brewing Company. Noon-6 p.m. Saturday at 666 Central Ave.