It's the last big day, people. Here are some options:

Red Bull Thre3Style Showcase. Z-Trip returns to headline this free, no-RSVP dance party (and they're promising a special guest with him). Other scheduled performers included Erykah Badu and the Cannabinoids, the Crystal Method, DJ Jazzy Jeff, Datsik and Dan the Automator. Gates at 7 p.m., music starts at 8 p.m. Eighth and Trinity streets, all ages.

Style X at Austin Convention Center. Fashion and music mix caps off with a runway show tonight at 6:15 featuring musicians as models. Panels today include "What's Up with Urban Fashion and Streetwear?" at 12:50 p.m., "Fashion is Cool, But Fashion + Technology is Cooler" at 2:10 p.m., "It's All in the Details: A Design Discussion" at 3:30 p.m. and "What the Olsen Twins Got Right: Family in Fashion" at 4:50 p.m. All Style X (pronounced "style by") are free and open to the public.

Auditorium Shores. Today's free shows start early, with Big Don, who performs hip-hop aimed at kids, at 1 p.m. He's followed by the Groundwork Music Orchestra, Torreblanca & Amigas (Ximena Sariñana, Natalia Lafourcade, Javiera Mena, Andrea Balency Trio), Bomba Estereo, Andy McKee, Shiny Toy Guns, The Bright Light Social Hour and headliners the Cult. Riverside Drive and South First Street.

KUT at the Four Seasons with Sons of Fathers, Glen Hansard, Justin Townes Earle and Nada Surf starting at 8 a.m. $10, proceeds go to Seton Shivers Cancer Center. kut.org.

Burgermania at 29th St. Ballroom with Las Ardillas, Natural Child, Flesh Lights and 70 other bands, starts at 11:30 a.m.

South by San Jose with Built to Spill, Ben Kweller, Kool & Together/the Relatives, Amy Cook and more starting at noon. In the parking lot shared by Jo's Hot Coffee and Hotel San Jose on South Congress Avenue. joscoffee.com.

St. Patrick's Day. That's today, too. See some events that celebrate our favorite green holiday in today's Austin360 bets inside the Life & Arts section and more at austin360.com.

Big Easy Express. Three bands — Mumford & Sons, Edward Sharpe & the Magnetic Zeros, and Old Crow Medicine Show — took a train from San Francisco to New Orleans on a four-show tour that included stops in Marfa and Austin. The documentary about last summer's trip screens at 4 p.m. today at the Paramount Theatre as part of SXSW Film. You might see Austin musician Ephraim Owens, who was on the tour, and the Austin High School Band, who backed Mumford in Austin, in the film. That screening will be followed by an acoustic performance by band members. Then the whole shebang heads over to the LBJ lawn at the University of Texas for an encore screening and a concert. That event is free with RSVP, sponsored by MySpace. When we checked Friday, the RSVP list was full.