EXO's Kai released his first-ever solo mini-album back in November 2020. It has hit various milestones and set new records not only for SM entertainment artists but also the whole world. Most recently " KAI (开)” became The Fastest SM Solo Album To Surpass 60 Million Streams On Spotify.

Previously The mini album's title track "Mmmh" became the longest-charting K-pop song on Spotify Global Viral 50 with a record of 60 days on the chart.

The album also holds the record of most number ones for an EP in iTunes history.