Podcast star Steven Bartlett is joining with Authentic Brands Group to invest up to $400 million to help other creators grow their businesses.

The host of “The Diary of A CEO” podcast — through his holding company, Steven.com — on Monday unveiled OBSN. The venture will provide creators with capital, infrastructure, and expertise.

OBSN also includes a creator-economy media platform, which Bartlett’s company will run. It features news, analysis, and live experiences. Authentic, meanwhile, will handle the brand-building, product, licensing, strategic partnerships, and global distribution sides of the operation.

The pitch is that the new venture…