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Magic Johnson.
"I have the deepest admiration for Earvin as a tireless champion for creating economic opportunity in underserved communities," Square CEO Jack Dorsey said in a press release. "As a successful entrepreneur and advocate for economic inclusion, Earvin's unique perspective will be invaluable to our community of sellers and our board. We are honored to have him."
Square is in the spotlight as Dorsey recently took on an extra job as the interim CEO of Twitter.
Johnson is currently the chairman and CEO of Magic Johnson Enterprises, which creates products and services for underrepresented urban communities.
"I am ready to get to work as a member of Square's Board of Directors so that any business, in any community, can compete and win," Johnson said in the announcement.
Roelof Botha, Vinod Khosla, Jim McKelvey, Mary Meeker, Larry Summers, and David Viniar also sit on Square's board.
Dorsey and Johnson announced the news on Twitter.
Adding an amazingly successful entrepreneur and advocate for economic inclusion to the Square board: @MagicJohnson! https://t.co/zPvrFbBcUf
- Jack (@jack) June 17, 2015I can't wait to get started! I'm ready to roll my sleeves up and get to work! @Square
- Earvin Magic Johnson (@MagicJohnson) June 17, 2015