The singer has teamed up with Pharrell Williams for 'Celebrate', which will serve as the lead single from his upcoming album The Origin of Love.
The 30-second clip was apparently uploaded to Amazon ahead of its official unveiling and has now been removed from the online store.
The 'Celebrate' preview follows recent promotional track 'Make You Happy', which Mika unveiled last week as a taster for his new album.
The Origin of Love will be the star's third studio album and follows 2009's The Boy Who Knew Too Much.
The new collection is expected to be released later this year.
Listen to a preview of Mika's 'Celebrate' below: