Elderbrook performed at London’s Sea Life Aquarium on December 15, 2020, delivering an electronic set filmed as a livestream to promote "Why Do We Shake in the Cold?". British artist Alexander Kotz, known as Elderbrook, rose to fame with this 2020 release, and this gig featured its standout tracks in a striking venue. His style mixes deep basslines, layered synths, and a gentle vocal tone, crafting atmospheric dance music. "Numb" was the set’s core—a track with a steady beat, warm chords, and lyrics about inner conflict, quickly becoming a fan favorite. "Why Do We Shake in the Cold?," his debut album on Parlophone, fused house, pop, and emotional themes, cementing his place in electronic music. Kotz sang with conviction, handling loops and effects live, his voice blending into the electronic backdrop. The aquarium setting, with glass tunnels and swimming fish, added a visual edge: blue light reflected off the water, and the sound stayed crisp in the enclosed space. Held during the pandemic, this online event replaced traditional shows, with no live crowd but plenty of energy from Kotz. London’s quiet December streets stayed out of frame, while inside, the music built a vivid world. This performance marked a key moment, showcasing his adaptability and bond with fans through a digital lens.