Reese Witherspoon's women-led entertainment group, Hello Sunshine, has been sold to a media company backed by Blackstone. : Reese Witherspoon’s entertainment group Hello Sunshine has been sold to a company backed by private equity firm Blackstone Group Inc.  Hello Sunshine, which produces Apple TV+'s "The Morning Show" and Reese's Book Club, is the first investment for the new media company led by former Disney executives Kevin Mayer and Tom Staggs,according to a press release Monday.