"Without You" is a song by English boy band Blue. It was written by band members Lee Ryan, Duncan James, Antony Costa, and Simon Webbe along with Wayne Hector, Mich "Cutfather" Hansen, Jason Gill, and Daniel Davidsen and recorded for their fourth studio album, Roulette (2013). Production was helmed by Hansen, Gill, and Davidsen. "Without You" was released as the album's third single on 16 May in Austria, Germany, and Switzerland, where it reached the top 50 of the German and the Swiss Singles Chart.

Blue are a British boy band consisting of members Simon Webbe, Duncan James, Antony Costa, and Lee Ryan. The group formed in 2000 and released three studio albums before announcing a hiatus in late 2004. In January 2011, the group reformed and represented the United Kingdom at the 2011 Eurovision Song Contest in Düsseldorf with the song "I Can", coming in 11th place with 100 points. In 2013, it was confirmed that the group would be joining The Big Reunion, in which six groups from the past reform for a one-off gig. On 27 March 2013, the group announced they would embark on their first headlining tour later on in the year, their first tour in nearly ten years.