Girls' Generation members Hyoyeon, Yuri, and Sooyoung will officially debut as a new unit called 'HyoRiSu' with their first single in Q3 2024, as announced by SM Entertainment on the 5th. The project originated from a YouTube video posted in September last year on Hyoyeon's channel 'Hyoyeon's Level Up,' titled 'Shouldn't Girls' Generation change their main vocal for their 20th anniversary?' Originally started as a light-hearted new girl group debut project on YouTube, the unit has gained significant fan support leading to an official debut. Hyoyeon, primarily known as a main dancer, is challenging herself vocally while providing honest evaluations of her members' vocal abilities, which garnered attention. An anecdote emerged where Yuri, who debuted with Girls' Generation in 2007, felt the passage of 20 years when meeting 2007-born juniors. The unit, having confidently claimed they would catch up to the existing unit TTS (Taeyeon, Tiffany, Seohyun), is generating anticipation among K-pop fans.