MSU and UM coaches to wear headsets with #AmazonDetroit logo Saturday

The Twitter hashtag was created to lure Amazon's $5 billion second HQ to Detroit

Millions are expected to watch the rivalry game during primetime on ABC

The team trying to lure Amazon.com Inc.'s HQ2 to Detroit is taking to the football field to get attention for the effort.

Both UM head coach Jim Harbaugh and MSU head coach Mark Dantonio will don headsets with the Twitter hashtag #AmazonDetroit on each earpiece for Saturday's nationally-televised game at Big House in Ann Arbor.

More than 100 American and Canadian cities are vying for the $5 billion Amazon investment, including Detroit, Chicago, Cleveland, Philadelphia, New York and Los Angeles.

Amazon issued a request for proposals on Sept. 7 with a detailed criteria for the location, including a city with a population of at least 1 million with direct access to mass transit for a real estate footprint starting at 500,000 square feet and possibly growing to as much as 8 million.

Detroit quickly coupled with Windsor and Detroit Mayor Mike Duggan anointed Gilbert, chairman of Quicken Loans and downtown Detroit's largest real estate owner, to lead a team to draft an effective proposal to lure the tech company.

Gilbert's team at Bedrock created the #AmazonDetroit hashtag as part of a 30-second hype video that promotes the city directly to Amazon in response to the Seattle-based e-commerce giant's unusual publicly issued request for proposal for a $5 billion second headquarters. Gilbert leads the team, which includes many of the city's and state's top business executives and politicians, to attract the investment.

Quicken signed on as a headset sponsor for the game, for an undisclosed sum, and used its space for the #AmazonDetroit logo. FCA US LLC's Ram brand donated part of its ad space on the other side of the sets for the campaign.

The move is expected to raise awareness nationally and locally on Detroit's bid for Amazon's "HQ2," said Whitney Eichinger, Rock Ventures' vice president for communications.

Nearly 4.7 million watched last weekend's Saturday Night Football on ABC game Clemson University at Virginia Tech.

UM (4-0) is ranked seventh in the nation on the AP Top 25 poll, while MSU (3-1) is unranked. Coverage begins at 7:30 p.m. on ABC.