Amazing footage has emerged from a diver off the coast of Honolulu, Hawaii showing a 'singing' humpback whale under their boat last month.

The filmer later wrote online: "Always so magical!! We didn't realize at first, but the male singer was right under our boat.

"You could hear the singing through the hull and I could feel the vibration through my gopro stick. This mom and baby slowly came by to check us out and then shortly after another mom, baby and escort came out of nowhere and passed by.

"The male under the boat was still singing away."

Always so magical!! We didn't realize at first, but the male singer was right under our boat. You could hear the singing through the hull and I could feel the vibration through my gopro stick. This mom and baby slowly came by to check us out and then shortly after another mom, baby and escort came out of nowhere and passed by. The male under the boat was still singing away.