One-half of an Australian aquariums same-sex penguin power couple has died, ending a six-year love story that captured hearts around the world.

Sphen, a nearly 12-year-old Gentoo penguin, died earlier this month at the Sydney Sea Life Aquarium, his heartbroken handlers announced Thursday.

His partner Magic, 8, erupted in song when he was taken to see Sphen after his death, prompting the rest of the colony to join in, the aquarium said in a statement.