Last Bell

TWS debuted in January 2024 with the EP Sparkling Blue,^[2] and followed it up four months later with Summer Beat!.^[3] Both were commercially successful, with each EP achieving sales of over 500,000 copies.^[4] On October 10, Pledis Entertainment announced that the band would be releasing new material in November, their third new release of the year.^[5] Last Bell, TWS's first single album, was announced on November 4 with a teaser video uploaded to the band's official YouTube channel.^[1]

A trailer for the album was released on November 9.^[6] The trailer, running one minute 34 seconds, portrays the band as high school students preparing for what will be their last winter festival play before graduation, A Midwinter Might's Dream. The band is shown interacting with girls who affectionately watch them rehearse, teaching them choreography, decorating the stage, and practicing lines.^[7] The same day, the band shared a phone number that fans could call on their official social media channels. Callers were connected to an interactive voice response line that played "playful" messages from the band's members. Over 10,000 fans connected to the line within the first 10 minutes after posting, with tens of thousands of additional calls being rejected due to the service being over capacity.^[8] The single album was released on November 25, 2024.^[9]

The single album's lead single "Last Festival" (Korean: 마지막 축제; RR: Majimak chukje) contains an interpolation of the song of the same name by Seo Taiji and Boys, taken from the group's 1993 album Seo Taiji and Boys II. The song is described as a "refreshing winter song" that is completely different from the original track.^[9]

On the day of release, the band will hold a showcase concert performing songs from the album at Blue Square Mastercard Hall in Yongsan District, Seoul.^[10]