Olivia Newton-John

She had the entire audience singing along.

Urban and his wife, Nicole Kidman, offered a touching memorial statement for Newton-John in the wake of her death.

She was one of the biggest multi-genre stars of her generation.

She's staying positive despite a grim diagnosis.

Women have ruled the country charts for decades by singing about far more than just love and heartache.

There are many -- too many -- country stars who have had cancer or have been personally affected by it in some way.

Some 35 years after 'Grease' hit theaters, stars John Travolta and Olivia Newton-John are reuniting...for a Christmas album. With Kenny G. And Barbra Streisand. Yes, this is actually happening.