"Bad Feeling (Oompa Loompa)" is a 2023 alternative rock song released by Jagwar Twin (Roy English) under the Big Loud Rock label.

The song utilizes the lyrics and melody from the refrain of the Oompa Loompa songs in the 1971 film Willy Wonka & the Chocolate Factory.

[4] It was produced by Ryan Daly and Roy English, and written by English, Daly, and Sean Van Vleet, with credit to the original composers of the 1971 work.

[3] In a statement about the song, Twin referred to it as "a chocolate covered reminder to trust your gut".

[3] The song was described by journalist Amanda McArthur as containing "spooky sounds, akin to a distorted lullaby" as well as a "pulsing beat and haunting whistles".