Lady GaGa has immortalised fashion icon Donatella Versace in song for her new album Artpop.

The pop superstar penned the track Donatella as an ode to her designer pal and gifted it to the 58 year old at a birthday party she threw for the veteran in May (13).

The tune opens with the words, "I'm so fab/Check it out", and goes on to include lines such as, "I'm blonde/ I'm skinny/ I'm rich/ And I'm a little bit of a b**ch" - and Versace can't get enough of it.

She tells Elle magazine, "The best present she could give me. I loved it and couldn't stop dancing. I made her play it again and again. The song is insane, over the top, loud and full of energy - everything that I like."