"Hello" (Kuuriya: 안녕; RR: Annyeong) waa hees cusub oo duubis ah oo uu duubay heesaaha Koonfur Kuuriya ahna xubin ka tirsan Red Velvet Joy. Asal ahaan waxaa duubay oo soo saaray fannaanka Park Hye-kyung 2003, heesta ayaa dib loo duubay waxaana la sii daayay Maajo 31, 2021 oo ay soo saartay shirkadda SM Entertainment oo cinwaan ahaan ka soo baxday albumkeeda gaarka ah ee dib u sameynta isla magacaas. Romanization dib loo eegay ee Kuuriya " 'Solo debut' Red Velvet JOY, delivers bright energy with the title song '안녕 (Hello)'! ". SM Entertainment.