Daniel Powter, a Canadian singer-songwriter, released Bad Day in 2005, and it became a global chart hit the following year, reaching number one in the United States. Its use as the farewell song on American Idol helped make the chorus familiar to millions of television viewers. As short clips spread on video platforms, creators began using the chorus as audio shorthand for failure, bad luck and disappointing days. Its simple piano hook and instantly recognisable melody keep it useful long after its chart peak, especially for lighthearted fail and reaction videos.