“Red Flavor” (Hangul: 빨간 맛; RR: Ppalgan mat) is a song recorded by South Korean girl group Red Velvet for their fifth extended play The Red Summer (2017). Written by S.M. Entertainment lyricist Kenzie and produced by Daniel Caesar & Ludwig Lindell (known collectively as Caesar & Loui), “Red Flavor” is primarily a dance-pop song with a summer vibe, while the lyrics hint towards a young relationship with summer references. It was released as the title track from The Red Summer on July 9, 2017 by SM Entertainment, along with an accompanying music video.
Upon its initial release, “Red Flavor” has since received positive reviews from music critics who praised its hook and catchiness for a summer anthem, and appeared on several year-end lists from critics. The song was a commercial success in South Korea, becoming the group’s first Gaon chart-topper and their fifth song to sell over a million copies. It also attained success outside of their native country, peaking at number four on Billboard’s World Digital Songs chart while becoming their first single to enter Billboard charts in Philippines and Japan.