Thompson has been one of the leading voices in reality television, as his voiceovers were heard in the earliest days of reality TV and are still heard on shows such as "American Idol", "Paradise Hotel", "Are You Smarter Than a 5th Grader?", "The Simple Life" and "Don't Forget the Lyrics". He was also the announcer on former Fox game shows "Greed" and "It's Your Chance of a Lifetime". Thompson is the vocalist for the "So You Think You Can Dance" television show theme song for all versions of the show worldwide, and he is also the announcer for the US version of the show.