Daphne Guinness is one of the most influential people in fashion; she was also one of the late Alexander McQueen's muses. Keep in mind, she pretty much never tweets or retweets about Pop Culture; 75% current affairs, 25% fashion.
Gaga has cited Daphne countless times as an inspiration.
Check out some fashion clips involving Daphne:
As you can see, visually she's been a massive influence on Gaga.
And check out Daphne's new single "Fatal Flaw" here:
I heard they're friends 