Pesto, a nine-month-old king penguin at Melbourne’s Sea Life Aquarium, has become a viral sensation for his extraordinary size and fluffy brown feathers. Weighing 22.5 kilograms, he is the largest chick the aquarium has ever had.

Sea Life Melbourne have a new celebrity in their midst in the form of a baby king penguin, who has gone viral for one massive reason.

A huge king penguin chick named Pesto, who weighs as much as both his parents combined, has become a social media celebrity and a star attraction at an Australian aquarium.

Chocolatey brown, obscenely fluffy, and towering a head above his own foster parents – plus weighing more than both combined - is Pesto. Affectionately dubbed a "fatty", an "absolute unit", and a "linebacker", the chonky chick has shot to viral superstardom and attracted a legion of obsessed fans, including popstar Katy Perry.

Meet Pesto, a 22-kilogram king penguin chick who’s quickly becoming the latest social media sensation - A huge king penguin chick named Pesto, who weighs as much as both his parents combined, has beco

Pesto, a nine-month-old king penguin at Sea Life Melbourne, weighs 20 kg, making him the largest chick ever at the aquarium. He is raised by Tango and Hudson, while his biological father is Blake. Pesto's viral videos showcase his rapid growth and feeding habits.