"Since Yesterday" is a song performed by Scottish synth-pop duo Strawberry Switchblade, the lead single from their self-titled album.

[1][2] While the musical structure stayed the same, the lyrics and vocal melody were extensively rewritten by McDowall when the duo recorded their debut album, and was eventually retitled "Since Yesterday".

Upon its release, the song received a positive reception by Smash Hits reviewer Neil Tennant who found "a wistful melody, sung in brittle harmonies which touches the heart.

"[6] After releasing their debut single, "Trees and Flowers", on an independent label, the duo were signed to Korova, a sub-label of the Warner Music Group.

The song was a big hit in Japan, where the group found their biggest fanbase, both for their music and for their lolita-esque image.

The duo's first music video, directed by Tim Pope, presented them with the image they're most associated with: heavy goth-like make-up and eyeliner, polka-dot dresses, and many bows and ribbons in their hair.