for the songs. On 22 November 2011, the Mystery Jets announced that their new album will be released in April 2012, with a tour to follow in May 2012. On 3 April 2012, shortly before the release of Radlands, it was announced that Kai Fish would be leaving the band, with bassist Pete Cochrane taking his place for the band's UK tour. On 15 February 2013, it was announced that the Mystery Jets would be performing at Y Not Festival in Derbyshire on Friday 2 August 2013. Curve of the Earth (2016-2017) On 30 September 2014, the Mystery Jets played a one-off show at the Barbican in London, along with Johnny Flynn & The Sussex Wit, Marika Hackman, Dry The River, and with Laura Marling as a special guest, to celebrate Transgressive Records' tenth anniversary. In a blog post on the band's official website following the show, Blaine Harrison announced that the band was "deep into the thick of album five sessions", and had completed building their own studio in a former button factory. Harrison also announced a new band member, bassist Jack Flanagan, had been officially incorporated into the band in January 2014. On 20 October 2015, the band released a trailer announcing their fifth album Curve of the Earth, which was released on 15 January 2016. The album's release was marked with a special one-off live show at London's ICA for competition winners and music journalists. Following fellow British Indie band The Maccabees' announcement that they would be splitting up, Mystery Jets were announced as special guests for their farewell shows on 17 January 2017, alongside IDLES. The run included two nights at Manchester's 02 Apollo and three nights at Alexandra Palace in London. On 10 July 2017, the band announced they would perform a five-night residency, entitled 'Jetrospective' at London's iconic and newly refurbished venue The Garage, at which they would play their first five studio albums back to back: Making Dens, Twenty One, Serotonin, Radlands and Curve of the Earth. On 30 September 2017, the band announced the support acts for the sold-out run of shows, including Sundara Karma, Jade Bird, Marika Hackman and Blaenavon. A Billion Heartbeats (2019–2020) In August 2019, the band announced their album A Billion Heartbeats. According to Clash magazine, the album was inspired by recent large protest marches in London, and "the continuing politicisation of British youth". The band planned to