The Index ranks celebrities according to the media exposure they've received. To do this, USA TODAY tracks their appearances in print, online and on TV by monitoring 12 entertainment news outlets. Each week, we note when a celeb appeared on a magazine cover or was among the top stories on a TV news report or a website. Points are awarded for each appearance based on the prominence of each outlet. Outlets tracked include TV's Entertainment Tonight, websites USATODAY.com, PopSugar.com, tmz.com and x17online, and publications In Touch, Life & Style, National Enquirer, OK!, People, Star and Us Weekly.

Find out who's the hottest star each week with USA TODAY's Celebrity Heat Index.