Flash a Hungry Smile Serotonin Brit prog / psychedelia band Mystery Jets have recently released their album Serotonin, the follow up to their 2008 album Twenty One. This album is full of catchy synth pop songs about heart ache / break and general unfortunate events. Clear winners on the album are the released Flash a Hungry Smile and title track Serotonin. They seem to be reviving the sound that Duran Duran left back in the day; and in no way is that a bad thing. A solid entry to their growing catalog of albums. Check out Serotonin.