The days of singers like Greg Lake, or Janis Joplin, or Frank Sinatra, and Joan Biaz, have passed, and will only return once in every hundred or so vocalists. I think half these bands have click tracks in there ear buds to replace the metronome they HAVE to have in the studio, to keep time.
Sadly I must admit the biggest problem I have is keeping the timing on.....I know better then to sing.