This was co-written and co-produced by Timbaland. There has been an ongoing debate on the Internet and in the media as to whether Timbaland ripped off the melody and chords for this song from "Acid Jazzed Evening," a 2000 recording by Finnish artist Tempest. Timbaland admitted in a radio interview to sampling the synth line but claimed that he borrowed it from a video game.
This was Furtado's lowest peaking single on the Billboard Hot 100 to date. However it did better in Europe reaching the Top 10 in several countries including Italy, Poland, Portugal and Turkey.
Kid Rock's "All Summer Long" is a mashup of "Werewolves Of London" and "Sweet Home Alabama." The album it came from was released in October, 2007, but they held off until summer, 2008 for a more seasonable release.