the greatest in the world linkin park their start:
Talent. That's one of the main things. But they had gone through another singer before their lead singer Chester Bennington joined, and it never worked. Then when they got it together, they wrote (very cool) music, and Warner Bros people liked it, gave them a record deal, and Hybrid Theory was a very successful debut album. After that, they had gotten a lot of fans, the ability to release to more albums, and kept going uphill from there.