I visited her official website ladygaga.com and it is a perfect monetised way to connect with the fans. Fans connect her with social networking websites like Facebook, Twitter and Myspace and keep in touch with what she is doing. Her fans can download music / videos, discuss about her on the forum. They buy her MonsterBalls tickets as well.

Tip: 

A pop star should not only be talented singer but key to success is attract peoples' attention. Use technology to keep the fans engaged by use of social networking sites and keep the buzz ongoing.