Spell is the second extended play by South Korean girl group DIA.

[1] The EP peaked at number 4 on the Gaon Album Chart.

The theme of the comeback is "Harry Poster" which will be produced by Shaun Kim.

[7] In addition, one of the songs included in the album Flower, Wind and You which is member Hui-hyeon's solo song will also feature vocals by IOI's Jeon Somi, Choi Yoojung and Kim Chungha.

[10] It also debuted at number 9 on the chart for the month of September 2016 with 10,266 physical copies.