Faces and Places Grease DVD Party

Bust out the leg warmers and leisure suits! Stars boogied into Paramount Pictures back lot for the DVD release of six ’70s and ’80s kitschy dance flicks: Saturday Night Fever, Grease, Urban Cowboy, Staying Alive, Flashdance and Foot-loose.

Party organizers rigged up a mechanical bull in honor of Urban Cowboy and re-created the flashing dance floor from Saturday Night Fever. When Olivia Newton-John and the Grease cast sang “Summer Nights,” John Travolta strained to hit his high note. “Here we go!” he joked before belting it out.

Mystery! How Does Olivia Look So Great?

At 54, the Actress Tells Us

You look so great.
I’ve always been slim naturally. I ate like a pig [growing up], and my girlfriends hated me!

What’s your secret?
I don’t have any! I eat lots of fruits and vegetables, drink lots of water and tea. I don’t drink alcohol, except for the occasional glass of wine. I have my own wine label Koala Blue.

You’re famous for “Physical.” Do you exercise?
I go to the gym, play tennis, walk and run. I’m on tour, so I’ve actually got a little walking machine in the bus. I also do yoga.

See, you do have beauty secrets….
They’re not really secrets but keys to health. Being positive. That’s a big one. And I have a lot of interest in cancer [she survived breast cancer]. They’re opening a cancer-center wing in my name in Australia.

Do you still have that bad-girl outfit from Grease?
I have the jacket. I wore it to the party the other night. I tried on the pants again, but the zipper broke! Back when we were filming, they had to sew me into them. I was literally stitched in. That’s one way to stop you from eating or drinking too much.

Photo captions: With daughter Chloe Lattanzi, 16, in April
They Go Together Again! - "This is the first time we've done this in 20 years," said Newton-John of her duet with Travolta, 48.