help me find this book

This  is a book I read years ago in college don't know  the name and author as the cover page was torn it was a story about a famous singer and a young girl who is his fan but pretends not to be when she meets him through a lucky contest when her brother submits the form without her knowledge anyways goes on with the pretence eventually falls in love with him but cannot take the media pressure and disapproves of his overexposed public life and seperate ways reunites later.