I bought this one off my friend but I don't know if its authentic. Could someone please help me out?
Scans are on here: http://tinyurl.com/lady-gaga-autograph

My friend was selling out her collection so I bought a few of her autographs.
Selena Gomez was one of them, she told me it's authentic but I don't actually know anymore, can anyone help me out? The scans are on here: http://tinyurl.com/selena-gomez-success

I got it from my friend and I'm not sure if it's real or fake?
Could you guys help me out? The scans are on my blog: http://tinyurl.com/my-autograph-collection