Как научиться красиво петь?

Талант - это от Бога.
Один открывает теорию Относительности, другой - умеет шевелить ушами.
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Попробуй.
Как говорил наш "классный папа" на военной кафедре, - Терпение и труд все перетрут.

Боюсь, ты знаешь ответ не хуже меня. Зачем тогда спрашиваешь?

Найти учителя пения, и начать учиться.

To you in this difficult task will help teachers in singing and stage speech. A couple of tips for this is not enough. The profession of a singer is achieved not so much more knowledge, much difficulty and time. So "how to learn" - you need not to ask but to find a teacher who will guide your work. You need a lot of work. Daily classes for an hour, a couple times a week lesson for an hour or two. Within two to three years. Or year. Or ten years. It all depends on Your natural abilities and your goals. Because the vocal is different. To sing in folk-folk manner, enough to have a hearing and to learn the manner of sound - half a year will suffice with a head. For pop vocal - three years for sure spend. For academic or jazz - and life may not be enough. Of course, this does not mean that there is no need to start. Sing something you can do right now. And continue to receive from this pleasure during the whole training time. Just as the training you will sound all bolee colorful, the voice will be more obedient, become available to more complex pieces.

Ходить к репетитору, или в музыкальную школу.