aespa, under SM Entertainment, released 'ATTITUDE' as the opening theme for the TV Tokyo anime 'Kill Blue' on December 6th at midnight through various global music streaming platforms, receiving enthusiastic responses from viewers. The new track 'ATTITUDE' features confident lyrics expressing an unwavering determination to maintain one's identity and prevent anyone from disrupting one's true self, with escalating beats in the chorus and an addictive melody. The song showcases aespa's powerful and refined vocal capabilities, amplifying the stylish action and fast-paced storyline of the protagonist Oogami Juzo's world. This track marks aespa's first single for their 2026 Japanese activities, followed by their first dome tour in Japan starting in April, with performances scheduled for April 11-12 at Osaka Kyocera Dome and April 25-26 at Tokyo Dome, where they will meet local fans. Meanwhile, aespa continues their '2025-26 aespa LIVE TOUR - SYNK : aeXIS LINE – ASIA' tour at the Galaxy Arena in Macau on December 7-8.