Bieber spent the afternoon with a 1,700-lb. male whale named Beethoven at the Beluga & Friends interactive program at Atlanta's Georgia Aquarium. During the intimate experience, the white marine mammal displayed his high-pitched sounds and let the star feed him fish.
The singer donned a wet suit for the hands-on encounter, which allows visitors to act as trainers and wade in the water alongside the majestic sea creature. Bieber gained a pal through the experience and shared a photo of them together on Twitter.
"Hung out with a new friend yesterday," he wrote.
Bieber isn't the first star to find a buddy in Beethoven. Actress Betty White has visited the whale twice and even wrote a chapter about him in her new book, If You Ask Me (and of Course You Won't).