Question: who sang the songs in the movie beyond the sea?
Answer: Kevin Spacey

Beyond the Sea is a 2004 American musical drama film based on the life of singer / actor Bobby Darin . Starring in the lead role and using his own singing voice for the musical numbers , Kevin Spacey co-wrote , directed , and co-produced the film , which takes its title from Darin 's hit version of the song of the same name .