- Members: Chaeyeon (1:09), Eunjin (1:17), Eunchae (1:29), Eunice (1:39), Yebin (1:52), Jenny (2:17), Huihyeon (2:26)
- DIA stands for Do It Amazing.
- DIA’s fan club name was supposed to be AMOND, but it was already taken by the singer of the same name. Fans had to revote among AID, MOND, and DIAry; and AID won by 13 votes, creating the worst K-pop fan club name, as fans are now called AIDs.
- Both Chaeyeon and Huihyeon took a hiatus from DIA to participate in the music survival show Produce 101 (2016), along with labelmate Kim Dani. They were part of the controversal group of contestants who had technically already debuted. Chaeyeon ranked 7 (215338 votes), including her in the winning group I.O.I; and Huihyeon, 19 (98849 votes).
- Chaeyeon didn’t know part of the choreogarphy during the song’s showcase on Weekly Idol. She stared wistfully into the camera to compensate, which is what popularized her on Produce 101.
