If you want to become a famous singer, you should first pick a vocal that you can sing best and specialize in. Choose a famous singer's best songs and use them to practice and improve your singing. When you are good enough, you should start singing at parties and gatherings so that you can gain publicity. The other important thing would be signing up for a recording agency so that your music can go far and wide. For more tips you can check out http://www.ehow.com/how_2222098_become-famous-singer.html.