TWS debuted in January 2024 with the EPSparkling Blue,[1] and followed it up four months later with Summer Beat!.[2] Both were commercially successful, with each EP achieving sales of over 500,000 copies.[3] On October 10, Pledis Entertainment announced that the band would be releasing new material in November, their third new release of the year.[4]Last Bell, TWS's first single album, was announced on November 4 with a teaser video uploaded to the band's official YouTube channel.[5]
^Kim, Seon-woo. "'대세 신예' 투어스, 11월 25일 컴백…첫 싱글 발매" ['Trendy Rookie' Tours, Comeback on November 25th... Release of First Single]. JTBC (in Korean). Retrieved 2024-11-04.
^Hong, Hye-min (2024-11-04). "투어스, 첫 싱글 '라스트 벨' 발매... 연타석 히트 이을까" [Tours, first single 'Last Bell' released... Will it continue the series of hits?]. Hankook Ilbo (in Korean). Retrieved 2024-11-04.
