If you've ever heard a song and ended up humming it all day, then you're not alone - male humpback whales do the same!
Australian scientists have found that whale mating songs are picked up and copied by other males - sometimes thousands of miles away.
But if a song is judged a miss, it's dropped to make way for a new tune!
The scientists spent 11 years looking for patterns in songs recorded from six whale populations in the Pacific Ocean.
This happens during breeding season, when males sing songs to attract females.
But it's not clear why males across the ocean would want to be humming the same song.