La Gaga's eye-catching outfit at the Grammys was handcrafted by an Irishman.

The superstar's kooky style has become as talked about as her music, and talented Galway designer Philip Treacy is credited with her latest fashion hit.

“I suppose he's done quite a few items for her before, but he's just started doing a number of hats for her for big events,” a spokesperson for the designer said. “She has quite a different style and she likes what Philip creates. The designs are time-consuming, but Philip can do anything.”

Treacy collaborated with Giorgio Armani, who handcrafted the rest of her outfit.

“Armani designed the outfit and sent it to Philip, who then designed the hat to match,” explained the spokesperson.

While she walked the red carpet in a lightbulb-inspired ensemble, she was later seen sporting the Philip Treacy lightning bolt hat (also pictured), paired with the Armani sequined bottoms.