ATARASHII GAKKO! (新しい学校のリーダーズ, "New School Leaders") is a high-energy Japanese girl group known for rebellious, authentic J-pop that blends pop, hip-hop, and rock, challenging idol norms with energetic choreography, school uniform attire, and themes of youthful freedom and individuality (seishun), gaining global attention through 88rising and viral social media presence.