‘2021’ is an uptempo pop melody with uplifting harmonies from Haneri in her first Mandarin track, joined by newly debut artist, Li TianCi TianCi kicks off the song and is joined midway by Haneri, in a call and response that emulates the artists’ collaboration across different continents and timezones. During the song, the pair reflect upon the difficulty of the previous year, yet with hopeful spirits, they move forward with motivation for the year ahead.