Super Junior Kyuhyun will officially release the spring single "Coffee" of 2021 PROJECT: ' (2021 Project: 季).

The new song "Coffee" will be released on various music sites such as Flo, Melon, Genie, iTunes, Apple Music, Spotify, QQ Music, Cougou Music, and Couwar Music at 6 p.m. today (13th), and music videos will also be opened on YouTube SMTOWN channel and Naver TV SMTOWN channel.

The medium tempo pop ballad genre "Coffee" is impressive in its lyrics, comparing the honest jealousy of a man who fell in love with an old friend and the coffee that cools the heart of a man who worries about confessing to his friend.