A meditation app backed by actor and husband-to-Mila Kunis Ashton Kutcher has been valued at $1 billion - making it Silicon Valley's newest unicorn - in a funding round led by TPG Growth partners.

The app "Calm" has raised $88 million during the round, which included both existing investors like Insight Venture Partners and Kutcher's Sound Ventures, as well as Hollywood's famed Creative Artists Agency. The brings the company's total raised to $116 million, according to Bloomberg.