Hello

"Hello" is a remake song recorded by South Korean singer and Red Velvet member Joy. Originally recorded and released by singer Park Hye-kyung in 2003, the song was re-recorded and was released on May 31, 2021, by SM Entertainment as a title track from her special remake album of the same name. Composed by Kang Hyun-min and also written by him along with Park Hye-kyung and Park Ji-won, the track was described as a modern rock genre song. It is about forgetting the hard days and celebrating a new day. The song peaked at position 10 on the Gaon Digital Chart and Billboard K-Pop Hot 100. Background and composition SM Entertainment revealed that Joy will be releasing "Hello" as the title track for her special album of the same name at 6:00 PM of May 31, 2021. It was reported that starting from the title song, mood samplers and track posters for each song in the album will be released sequentially. The track is a remake of the same name released by singer Park Hye-kyung in 2003. "Hello" was composed by Kang Hyun-min, while the lyrics were also written by him along with Park Hye-kyung and Park Ji-won. Musically, it was described as a modern rock genre song. The track is noted for its "speedy arrangement of cheerful brass music", in which was described as "enough to feel a different charm" from the original song. Moreover, Joy is praised on the track for her "cool vocals". The song is composed in the key of D major with a tempo of 93 beats per minute. Lyrically, it is described as "hopeful" as it conveys a message of forgetting about the hard days and celebrating a new day.