I'm in love with this guy?

I love him since our schooling time but I never had the courage to confront this to him. I have migrated to a different country now and things have changed in many ways. he is gifted with singing talent and I admire his singing talent ever since our teenage years. I have attended to his classical singing functions, before I migrated to my current country of residence. Recently, I went to back to my previous country of residence and the memories of him stirred my feelings and inclined to write him a letter regarding this whole issue. But I don't have his address, I only have the address of the recording studio that he goes for recording. Now he is sort of well known in the music industry. So I kind of feeling inferior to let him know about this matter. I'm worried what his reaction will be? should I let him know about this matter? or should I just let go and move on? will he trust me? will I make him upset if I confront to him about this matter? I don't want to upset him or disturb him because I love him a lot.