George Weiksner, the kid who rose to fame when he launched his own crypto-related gaming company at the age of 11, announced Thursday he had signed on a Grammy winner and a YouTube star to begin public crowdfunding for his initial coin offering — a capital-raising tool where funds are raised by issuing tokens.

His company, Pocketful of Quarters, has raised $400,000 via private presale, and, with the help of some Hollywood heavy hitters, he hopes to raise $1 million in a public funding campaign on Republic.co.