8. Adam Lambert
Although a runner-up on the hit US TV show, American Idol, Adam Lambert is second to none in terms of post-American Idol popularity. Blessed with an awesome voice, Adam emerged as a sensation on the No 1 US TV talent show. His sexuality and sexually charged performance at the American Music Awards spurred controversy and complaints, which helped promote his newly released album. With his stardom, we almost forget who the American Idol winner was in 2009.