"Really Don't Like U" follows on from "Jacques" featuring Jax Jones, "Bad as the Boys" with ALMA, and "Glad He's Gone".
Tove Lo's Sunshine Kitty album is the Swedish singer/songwriter's first since her 2017 album Blue Lips.
Sunshine Kitty will also feature collaborations with Doja Cat and Mc Zaac.
"Really Don't Like U" is out now. Tove Lo's Sunshine Kitty album lands 20 September, and is available to pre-order now.