"Kiss with a Fist" is the debut single by indie rock band Florence and the Machine, taken from their debut studio album Lungs (2009). The single was released through Moshi Moshi Records on 9 June 2008 in the UK and was then released four months later on 6 October 2008 through IAMSOUND Records in the US. The B-side to "Kiss with a Fist" is a cover version of the Cold War Kids song "Hospital Beds".

It has been featured on the original motion picture soundtrack to 2009 black comedy film Jennifer's Body, as well as the 2008 film Wild Child, NBC comedy Community (Season 1, Episode 12 - "Comparative Religion"), Cougar Town (Season 1, Episode 3 - "Don't Do Me Like That"), Saving Grace and United States of Tara. The song was also used to advertise the Channel 4 music channel.

"Kiss with a Fist" first appeared with the same lyrics under the name "Happy Slap" on Ashok's (Florence Welch's previous band) first (and only) album Plans. "Kiss with a Fist" was originally released as a non-album single and was later finalised as track number five on Lungs. It is significantly the shortest track on the album and was co-written by Florence Welch herself along with Isabella Summers (who co-wrote the majority of the songs on the album with Florence) and Matt Allchin. The song is in an indie garage-rock style and features Christopher Lloyd Haiden on drums, Robert Ackroyd on bass guitar and Tim McCall on guitar. The track was both recorded and mixed by Richard Flack with producer, former Pulp bassist Steve Mackey (renowned for his work with M.I.A.) credited as a co-mixer as well.

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