I've read and heard that some of the most inspiring vocal interpreters adhere habitually to one rule: Always think the lyrics as you're singing them, so that the sentiment is always appropriate and heartfelt.
Brandi CarlileWhen I was younger, I was always running into other girls involved in music. When I was about 14 or 15, one of my friend's dads was an Elvis impersonator and asked us to sing backups at a rehearsal. I did well and was hired. Did that for about two years.
Brandi Carlile