CSS, short for Cansei de Ser Sexy, is a dynamic electronic rock band hailing from São Paulo, Brazil, formed in 2003. The group burst onto the international music scene with their unique blend of indie rock, dance-punk, and electro-pop, marked by infectious beats, irreverent lyrics, and a playful, DIY aesthetic. Originally composed of a collective of friends with backgrounds in graphic design, art, and fashion, CSS quickly gained notoriety through their energetic live performances and distinct visual style.

Their self-titled debut album, released in 2005, featured standout tracks like "Let’s Make Love and Listen to Death from Above," propelling them onto global stages and into popular culture, with their songs featured in major commercials, TV shows, and video games. Known for their witty, bilingual wordplay and punk attitude, CSS continued to evolve with subsequent releases such as "Donkey" (2008) and "La Liberación" (2011), expanding their musical palette while retaining the raw energy and irreverence that defined their sound. Over the years, CSS has become a trailblazer for Brazilian indie music on the world stage, influencing a new generation of artists with their fearless experimentation and unapologetic artistry.