How to change default registration form? By default, user registration form in Drupal 7 takes 2 fields: "Username" and "Email."

I want users to set their password directly upon Registration.

Take 4 fields:
- Username
- Password
- Confirm Password
- Email

How can I do so?
In  Administration » Configuration » People » Account settings, uncheck the Require e-mail verification when a visitor creates an account. option. This will allow user to directly enter their password on the registration form.