No, I became one in 2013 (I didn't dislike her, but I didn't get the hype in 2011, 2012 [of course I listened to SLY and RITD in 2011] but then I saw the light).
No, I don't stan for Bad music. She's so uninteresting and only 10% of her songs are good. Never got how she managed to sell that much.
EDIT: Talking musically/visually/everything that centers around music obviously, her personality is cute.