Plus-44 is a British rock band formed in 2005 by former members of the popular group Blink-182, including Mark Hoppus and Travis Barker. The band's name refers to the international dialing code for the United Kingdom, symbolizing their British roots. They released their debut album, "When Your Heart Stops Beating," in 2006, which features a mix of punk rock and alternative sounds. The band's music is characterized by catchy melodies and emotional lyrics, often exploring themes of love and loss. Although Plus-44 has not released new music since their debut album, they remain a notable part of the early 2000s rock scene, with a dedicated fan base.