"Bitter" is a song co-written[2] and performed by American pop singer Fletcher; issued as the lead single from her third extended play The S(ex) Tapes.

[3] "Bitter" was certified gold by the Recording Industry Association of America on September 20, 2021.

[4] An official music video was commissioned for each version of "Bitter".

The music video for the version of the song featuring Kito was directed by Shannon Beveridge (Fletcher's ex-girlfriend).

[5] The music video for the version of the song featuring Trevor Daniel was directed by Brooke James.