“Bad Day” is a song written and recorded by Canadian singer-songwriter Daniel Powter. Powter and producer Jeff Dawson recorded the song in 2002 but at first they cound not find a label to release it. The song was first used in a French Coca-Cola television advertisement at Christmas 2004 before its official release. A piano-infused pop rock power ballad, it was released by Warner Bros. Records as the lead single for his self-titled debut studio album in Europe in early 2005.
Although “Bad Day” received generally mixed critical reviews, it was a commercial success. In 2005, it was the most played song on European radio, having topped the Irish Singles Chart and peaked at number two on the European Hot 100 Singles and on the UK Singles Chart. After its success in Europe, it was brought to the United States, where it topped Billboard ’s Hot 100, Pop 100, Adult Top 40 and Adult Contemporary charts. It was the first song ever to sell 2 million digital copies in the U.S. and was certified three-times platinum by the Recording Industry Association of America.