Written by Amethyst Chagolla | May 6, 2026

Photos by Amethyst Chagolla | Son Rompa Pera

Returning for its third consecutive year, La Semana Alegre (La Semana) took over Hemisfair Park, inviting both local and national talent to perform in San Antonio. Held during Fiesta, San Antonio’s largest celebration, the city was alive with vibrant colors, flower crowns, and music. Adding another layer of excitement and San Antonio tradition, the Spurs’ Fiesta colors returned to the streets for the first time in seven years, weaving sports and culture into the celebration.

La Semana Alegre presented a diverse lineup across Thursday and Friday, spanning genres and creating space for artists of all backgrounds to connect with San Antonio audiences. The festival featured a mix of local legends and national acts, including Joe King Carrasco, Men Without Hats, A Flock of Seagulls, Mypilotis, Girl in a Coma, Orca, La Santa Cecilia, Los Retros, The Bright Light Social Hour, 54 Ultra, Ghostland Observatory, Son Rompe Pera, and more.

Inspired by San Antonio’s original music festivals, La Semana Alegre returned in 2023. The event supports the local nonprofit Hemisfair, whose tagline, “Where San Antonio Meets,” was fulfilled throughout the weekend. Festivalgoers experienced not only music but the cultural staples of the city, including aguas frescas, gorditas, airbrush artists, and the iconic chicken on a stick, bringing together community and tradition in one space.

Photos by Amethyst Chagolla | Son Rompe Pera

A returning crowd favorite was Mypilotis, the project of singer-songwriter Chesca Umeno. Joined by Joey Patiño on guitar, Sofia Kurihara on bass, and Edgar Betancourt on drums, the group returned after appearing in the festival’s inaugural 2023 lineup. This year marked a major step forward, moving from an early time slot at the Plaza Mexico stage to an 8 p.m. performance just before headliner Girl in a Coma. Mypilotis continues to build a strong following in San Antonio and across Texas, drawing a crowd energetic enough for Umeno to crowd surf on an inflatable raft. Their set was met with thunderous applause, setting the tone for the rest of the evening.

Friday featured the highly anticipated performance of 54 Ultra, the stage name of John Anthony Rodriguez, known as “Johnny.” While 54 Ultra is the project of Rodriguez alone, he performs with his band, comprised of Aj on bass, Sam on drums, Duncan on bass, and Dave on keyboard. Fresh off a Coachella appearance, the group brought a growing national and international fanbase to the festival, with Rodriguez proudly highlighting his Puerto Rican and Dominican heritage. Their performance blended soul, synth-pop, and Latin indie influences into a nostalgic yet fresh sound. Each song carried a distinct energy, building momentum throughout the set. With Spurs jerseys scattered across the crowd, Johnny energized the audience with a simple shout of “Wemby,” tapping into the city’s spirit. Closing with “Heaven Knows,” the band left the audience with a message of love and community, setting the Civic Park stage for headliner Ghostland Observatory.

Meanwhile, at the Plaza Mexico stage, The Bright Light Social Hour delivered a high-energy funk performance. The Austin-based band, featuring Jackie O’Brien, Curtis Roush, Zac Catanzaro, Mia Carruthers, and Juan Alfredo Ríos, played to a steadily growing crowd spilling over from the main stage. Their set, driven by buoyant basslines, intricate guitar riffs, and vibrant synth textures, created a shimmering atmosphere that carried the audience back toward the main stage.

Photos by Amethyst Chagolla | Ghostland Observatory

Headlining the night at the Civic Park stage, Ghostland Observatory took the stage to roaring cheers. The Austin duo, composed of Aaron Behrens and Thomas Turner, fused electro, rock, and funk into a visually and sonically immersive performance. With theatrical movements, flashing lights, and laser displays, their set reached peak energy, extending the momentum across the festival grounds and into the Plaza México stage.

Closing out the night, Son Rompe Pera delivered one of the most dynamic performances of the festival. The band, based in Naucalpan, Mexico, blends traditional cumbia with danzón, ska, and rock influences. Their instrumentation, comprised of Allan "Mongo" Gama on marimba and electric guitar, Jesús "Kacho" Gama on marimba, Raúl "Raven" Albarrán on bass guitar, Ricardo "Ritchie" López on drums, José Ángel "Kilos" Gama on percussion, and Cana Murillo on percussion, creates a musically distinct sound. From the first notes, the crowd was ready to dance. Beginning with traditional cumbia rhythms, the band gradually introduced heavier rock elements, even headbanging while playing marimba. The audience followed suit, transforming from cumbia circles into a full circle pit. After leaving the stage, chants of “otra” brought the band back for an encore, the only one of the night, which pushed the energy to its peak. As their final notes rang out, the air remained electric.

Beyond Hemisfair Park, Fiesta continued to pulse through San Antonio. The River Walk and the Alamo remained filled with celebration, while Spurs playoff energy carried through the streets. Festivalgoers dispersed wearing La Semana wristbands and lanyards, carrying with them a shared experience of music, culture, and community. In a revitalized and growing Hemisfair Park, La Semana Alegre once again proved itself as a space where San Antonio truly meets.