I'm glad you have a passion for singing, its a great mood lifter and I love hearing a beautiful voice. My favorite music to listen to is female vocal trance. While that might not sound like a good choice for someone who appreciates great singing, there are actually some very talented singers in that genre of music and many of the songs have a lot of emotion in them.
My passion personally is old cars and motorcycles, hot rods, and 50's and 60's style and culture. I have a 1964 Chevy Impala which is my car I drive every day, I've had it since I was 17, and a 1955 Chevy pickup. I restored both cars myself. I have rebuilt and customized three 60's style motorcycles, one I kept, one for a friend, and one I sold. It's kinda like creating art that can take you places.
Anytime I'm feeling really down and out I can get in my car or on my bike and just drive for a while. It always makes me feel at least a little better :)