Stevie Nicks regrets doing drugs.

Stevie Nicks

Stevie Nicks

The Fleetwood Mac star is disappointed that, in the past, she didn't know she "had the energy to do an entire set totally sober".

She said: "Yes, it [doing drugs] was a lot of fun between 1975 and 1990 - until it wasn't. I walk onstage every night now and do a three-hour show with Fleetwood Mac, and I have a great time up there.

"I wish I had known that I actually had the energy to do this entire set totally sober and get just as excited. On one hand, that makes me feel great and on the other it makes me sad that I ever did my first line of coke."

And the 68-year-old musician has praised 'Hello' hitmaker Adele for believing in herself and feeling confident enough to take a hiatus.

She told The New York Times newspaper: "If she needs to go away for three years, she doesn't feel like somebody's going to take her place. When you believe in yourself that much, you can take as long as you want."

Meanwhile, Adele, 28, previously admitted she ended up "sobbing all over" the 'Landslide' hitmaker when they first met.

She shared: "I was sobbing all over her, oh my God. I don't really like crying in front of famous people because it's awkward and it can make them feel really uncomfortable. But I couldn't contain myself."