Funny how GaGa claims to write and produce 100% of her music, yet she has the longest list of "helpers" out of the nominees.
She doesn't claim to produce all her music just some of it and she has written songs alone (speechless) not to mention she had writing credits on songs before she was famous. Also she doesn't have that many co-writers. Most of her songs only have 1 or 2 co-writers so your post fails