In April 2010, Mystery Jets announced their third studio album, "Serotonin". The album was released on 5 July 2010 and was produced by Chris Thomas. The working title was "Luminescence" but the name was changed later on. Blaine has said that he wanted this album to be "quintessential Mystery Jets record." A promotional single, entitled "Flash A Hungry Smile", was made available on the band's website for free. The first single to be released from the album, "Dreaming Of Another World" was added to BBC Radio 1's B Playlist in May 2010 and was also released on 5 July 2010.