I Burn (stylized in sentence case) is the fourth Korean extended play by South Korean girl group (G)I-dle. It was released on January 11, 2021, by Cube Entertainment and Republic Records. It consists of 3 versions namely, the Winter version, the Flower version and the Fire version. The EP contains six tracks, including the lead single "Hwaa". The album contains various emotions felt in the process of regaining happiness after separation. I Burn is the fourth of the 'I' series, which started from the debut album, I Am (2018). Commercially, the EP had surpassed 100,000 copies, making their third album to surpass the mark, after I Trust with 115,500 copies.