The album contains five songs, including the eponymous title track, "Sunny Summer," described by
Billboard as having "airy, exuberant vocals that bounce along over the melody, [the song] is driven by the group's refreshing vocals tones as they sing about having a memorable summer together."[1]
^"第30 週 統計時間:2018/7/20 - 2018/7/26". 5music (in Chinese). Five Music.
Archived from the original on July 13, 2016. Retrieved August 14, 2018.
To access, select the indicated week and year in the bottom-left corner
^"2018년 Album Chart". Gaon (in Korean). Korea Music Content Industry Association.
Archived from the original on January 11, 2019. Retrieved January 20, 2019.
"Gaon Album Chart Year-end 2018". Gaon (in Korean). Korea Music Content Industry Association.
Archived from the original on January 11, 2019. Retrieved January 20, 2019.
The album contains five songs, including the eponymous title track, "Sunny Summer," described by
Billboard as having "airy, exuberant vocals that bounce along over the melody, [the song] is driven by the group's refreshing vocals tones as they sing about having a memorable summer together."[1]
^"第30 週 統計時間:2018/7/20 - 2018/7/26". 5music (in Chinese). Five Music.
Archived from the original on July 13, 2016. Retrieved August 14, 2018.
To access, select the indicated week and year in the bottom-left corner
^"2018년 Album Chart". Gaon (in Korean). Korea Music Content Industry Association.
Archived from the original on January 11, 2019. Retrieved January 20, 2019.
"Gaon Album Chart Year-end 2018". Gaon (in Korean). Korea Music Content Industry Association.
Archived from the original on January 11, 2019. Retrieved January 20, 2019.