Nikki Sixx Says He’s ‘Unofficially Retired’ From TouringNikki Sixx Says He’s ‘Unofficially Retired’ From TouringNikki Sixx spent decades on the road with Mötley Crüe — and has recently toured with Sixx:A.M. — but it sounds like he's finally had enough of being away from home.Jeff GilesJeff Giles