"Thunder Fever" is The Vaccines' first new material since releasing their fifth album Back In Love City in September last year. The new track was recorded at The Pool and is produced by Fryars (Mark Ronson, Pharrell).

Justin Young says of the single, ""Thunder Fever" plays on the idea that falling in love can feel as powerful, intense and as sudden as something meteorological. Something heaven sent. It feels out of this world. Pop music has always been obsessed with the other-worldly, and that’s how the best of it often looks and feels - it relies on hyperbole. I thought our inability to travel to the edge of life's extremes over the last couple of years and experience any form of hyperbole ourselves added a new and cruel dimension to this. But hopefully "Thunder Fever" allows some escape. It comes at a time when the storm clouds finally feel like they're parting and hopefully it sounds as fun and frenetic as taking shelter from the rain with someone you cant get out of your head."