Nature is the most beautiful thing we have. It's better than art because it's from the creator.

A lot of songs are inspiration and help people through pain, grief and loss.

John [Travolta] and I have remained very close friends ever since we did Grease. When I was told that "You're the One That I Want" was named the #1 duet in history and, during a text chat with John letting him know he said "we should record a Christmas song." Of course I said yes.

I think that I've always been on a search. I have my own kind of belief in love is the being, but I think that I've always been searching for truth and I think there's lots of truths and I think we should respect that in each other, and that's really what I wanted to bring across.

I look at my cancer journey as a gift: It made me slow down and realisethe important things in life and taught me to not sweat the small stuff.

I am lucky to have the greatest band and when you add a symphony orchestra to the mix it brings all of my songs to a whole new level. I wouldn't say I really change what I do but, having those talented musicians behind me, along with my band, really makes the songs so much bigger and more fun to sing.

My memories are inside me - they're not things or a place - I can take them anywhere.