Mostly recognized for his trot and folk-centered discography, the production of Hello was primarily handled by Western producers and explored a new style of music in comparison to his previous works.

[1] Cho received more than 700 tracks from domestic and international composers for the record, and ultimately boiled down the selection to ten songs that he believed were the most trendy.

A contemporary pop rock number, it possesses a rather light and bouncy character and contains various instrumentations, including that of keyboards and acoustic guitars.

[4] Primarily known as a traditional trot and folk singer in South Korea prior to Hello, Cho utilized English words in his lyrics for the first time in the track.

[9] Korean Music Awards selection committee member Sung Woo-jin praised its modern composition and noted how it has received broad attention across various generations from children to the elderly.