"Hangover" is a song by English singer-songwriter Taio Cruz from his third studio album, TY.O. Released on 4 October 2011 in Germany, and 4 March 2012 in the United Kingdom, the song serves as the album's international lead single, and follows "Troublemaker" as the album's second British single. American rapper Flo Rida contributes guest vocals. Another alternate version of the song, titled "Takeover", was leaked online via NewJams.net.