I have Fearless and RED autographed CD booklets and a framed, autographed picture of Taylor. I have a personalized autograph from Avril, because I was one of the first however many to donate to her charity. I have a Hilary Duff autographed booklet for BIBO, and LIGHTS' autograph on a poster and Little Machines booklet.
I have Adele, Karmin, Florence W, Birdy, Sara Bareilles (KH, BU, Waitress), Sia (We Are Born, 1FOF, and soon to be This Is Acting), Phillip Phillips, Joy Williams, and One Republic I think thats all for musical acts. I do have one book signed by Rick Riordan and a book mark somewhere signed by Christopher Paolini
Kesha
Marina
Lana
Daniel Radcliffe (from Equus, How to Succeed and The Cripple of Inishmaan)
Queen Latifah
Chris Colfer
Heidi Klum
and a whole bunch of Playbills
Did you private message her on Twitter? She follows me but i wouldn't know how to say it.
no she doesnt answer her dm's, every few months she picks a fan to be like a "fan of the month", i won it in october and she asked for my address and she sent me two personalized autographs on a tshirt and a photo
her mom also does contests once and a while for autographs
I think thats all for musical acts. I do have one book signed by Rick Riordan and a book mark somewhere signed by Christopher Paolini 
