Sharon Stone is opening up about the unique bond she shares with Britney Spears , who recently cited the Basic Instinct actor as one of her personal inspirations.

Appearing on The Kelly Clarkson Show Wednesday, Stone said Spears reached out to her for help sometime around 2007, when the pop stars seemingly erratic behavior was making global headlines.

Britney wrote to me a very long and important, poignant letter during a very difficult time in her life about the time when people would recognize her for when she shaved her head wanting me to help her, Stone told Clarkson. I was in a very difficult time of my life and I couldnt help myself. The truth of the matter is, we both needed help. She needed help and I needed help.

The Academy Award nominee had been asked to comment on a photo of her that Spears posted to Instagram last week as part of a series that included Miley Cyrus and Sarah Jessica Parker .

These are the women that have truly inspired my life, the singer wrote in the accompanying caption, adding, These cool ladies always add a spark to my day.