Formed in Portsmouth (Hampshire), Crystal Tides is a British indie rock band featuring Billy Gregory (vocals, rhythm guitar), Harry Knowles (lead guitar), George Regan (bass) and Joe Knights (drums). Renowned for their energetic live shows, the band mix sharp guitar riffs with catchy pop and rock melodies. After a debut single entitled "Lifeline" (2018), track after track followed, culminating in the debut EP Eat Your Words (2021), followed by The Middle (2024) and Back to You (2025). February 2026 sees the release of debut album Toothpaste, which tops the UK download charts.