How do you get better at singing?

Question:

How do you get better at singing?

Everyone says that if you don't have a good voice (it sounds horrible) that if you take classes you can sound as good as a famous singer (Hannah Montana or Martina McBride ect.). Is this true?

Best Answer - Chosen by Asker: THere are limits on everyone's voice, but a teacher can show you technigues to reach your whole potential.