Which reality show features contestants voted off an island, with host Jeff Probst?

Which reality competition show featured Simon Cowell, Paula Abdul, and Randy Jackson as original judges? Who won the first season of 'American Idol' in 2002? Which 'American Idol' winner became a country music superstar after winning Season 4? Who has hosted 'American Idol' since its first season? Which reality show features teams racing around the world, hosted by Phil Keoghan? Which reality series followed a family consisting of Kim, Khloé, and Kourtney? Which reality competition features drag queens competing, hosted by RuPaul? Which reality show pairs celebrities with professional dancers?