"Problem" is a song by American singer Ariana Grande, featuring Australian rapper Iggy Azalea. It was released by Republic Records on April 28, 2014 as the lead single from Grande's second studio album, My Everything (2014). It was written by both alongside Savan Kotecha, Ilya and Max Martin, being produced by the latter two with Shellback, with Peter Carlsson serving as a vocal producer. "Problem" is an uptempo dance-pop and R&B song with influences of funk music, which comprises a melody based on drums, saxophone loops, and trumpets. The chorus features uncredited background vocals from American hip-hop artist Big Sean. Lyrically, Grande has stated that the song is about "the feeling of being absolutely terrified to re-approach a relationship that's gone sour – but you want to more than anything."

Ariana Grande-Butera is an American singer, songwriter, and actress. Regarded as a pop icon and an influential figure in popular music, she is noted for her four-octave vocal range and her signature use of the whistle register. Grande has received numerous accolades throughout her career, including two Grammy Awards, one Brit Award, two Billboard Music Awards, three American Music Awards, nine MTV Video Music Awards, and 36 Guinness World Records. Rolling Stone named her one of the greatest vocalists of all time.