Who says you can't roll a 13 in Las Vegas?
Janet Jackson did -- during this year's Metamorphosis residency. Billboard reports that between July 24th and August 17th, her shows at the Park Theater grossed $8.9 million. Adding that to her earlier run, Jackson sold $13 million of tickets.
On a daily basis, Janet averaged $722,000 and over 4000 tickets a night -- better than the first years of recent Vegas mainstays Celine Dion($704,000) and Britney Spears ($679,000).