"Since When" is a song by Canadian rock band 54-40.

The song is the first single and title track of the band's eighth studio album, Since When.

The song is the highest-charting single in the band's history, peaking at No.

[1] The song won the award for "Best Song" at the West Coast Music Awards, with the song's music video winning the award for "Best Video".

This 1990s rock song-related article is a stub.