Just Mustard are an experimental rock band from Ireland.

Self-produced and recorded by the band in their home studio in Dundalk and in Start Together Studios, Belfast, with recording engineer Chris Ryan, Wednesday was nominated for the Choice Music Prize in 2018.

In 2020, the band signed to Brooklyn-based label Partisan Records, which released their sophomore album, Heart Under, in May 2022.

17 in the Irish albums chart[7] and received critical acclaim upon its release.

[8] This article about an Irish band or other musical ensemble is a stub.