09/29/2008 at 01:00 AM EDT
• Back from retirement, Turner, 68, is releasing a new hits disc, Tina!
, and rehearsing for a tour starting Oct. 1 in Kansas City, Mo.
ON WHAT SHE'S BEEN UP TO
I spent seven years out of the spotlight [living in Switzerland] and I must say I loved every minute. Getting up at no specific time, spending time with friends, reading. No two days were the same. Some days I would just spend window-shopping and exploring.
ON HER COMEBACK
I've done several private shows, so I was never fully out of a job. But then last year I saw my friend Sophia Loren, who told me my rest was over and to get back to work. Then Beyoncé asked me to join her onstage at the Grammys.
ON HOW SHE KEEPS IN SHAPE
I have no secret—I have good genes. But I get a lot of sleep and eat healthy. I was never into drugs or smoking. I have an occasional glass of wine or champagne, but that's about it. I swim and hike. For the tour, I've been dancing 10 hours a day. Things are getting smaller and tighter!
ON TODAY'S POP STARS
Of course Beyoncé
is a true talent. I like Rihanna
. She's got great personal style. For the guys, I'm a Justin [Timberlake] fan.