"Hate That..." is a song by South Korean singer Key featuring Taeyeon.

It was released digitally on August 30, 2021, by SM Entertainment as the first single from Key's extended play Bad Love.

The song is written by Hwang Yu-bin and composed by Stephen Puth, Lauren Mandel, and Eric Potapenko.

On August 24, 2021, it was announced that Key would be pre-releasing a digital single titled "Hate That..." prior to the release of a new album at the end of September.

[4] "Hate That..." was written by Hwang Yu-bin and composed by Stephen Puth, Lauren Mandel, and Eric Potapenko.