15. Chuck Norris, 16.Wesley Snipes and 17.Christie Brinkley: The two action stars and the supermodel all endorse Total Gym in infomercials, with Norris and Snipes calling it the only piece of home gym equipment they'll ever use.
18. Vivica Fox: After appearing on Season 3 of "Dancing With the Stars," actress Vivica Fox kept dancing through Zumba Fitness. Thanks to the dance exercise regimen, her "booty rose up a level," she said in a Zumba infomercial.
19. Cindy Crawford and 20. Valerie Bertinelli: How is the supermodel maintaining her looks into her 40s? As she explains in her infomercials, Cindy Crawford, right, credits her own skin care line "Meaningful Beauty." Valerie Bertinelli, famously of the 1970s show "One Day at a Time" and, more recently, "Hot in Cleveland," appears in the ads as well and raves about how Crawford seemingly "defied the aging process."