I think it's wrong to worship any celebrity, or idolize them. They may have a talent, but they are imperfect the same as the rest of us, they don't necessarily know best, often they become victim to vices, greed, ego, etc.
I don't like a lot of modern music, find it soulless electronic trash. But I'm not a big fan of Christian music either, I like rock.
I'm a grown up, I can decide what I listen to. I don't know if the artists are always aware of their blasphemy or what their symbols represent. Though yep you can definitely see a theme these days which seems very occult.
I do like Gaga but don't see her as any kind of role model or person to follow. From what I've seen, the celebrities who don't end up in trouble know how to separate the persona they've created from the reality, with Gaga it's now like the persona has taken over. It bugs me that she describes her interactions with her fans as being like a 'religious experience'... that is taking it way too far but maybe she's doing it all for the shock value, to cause controversy.