Guinness is shipping a new fizzy stout to America from Ireland  in honor of its 250th anniversary – and the new drink will pack a real zing.

"This is more about refreshment and zing," said the Guinness master brewer Fergal Murray, who invented  the new carbonated brew. “The stout has a different look and taste than anything our fans have ever experienced, but still retains the familiar character,” he said.

The limited-edition Guinness 250 Anniversary Stout will celebrate founder  Arthur Guinness's signing of a 9,000-year lease in 1759 at St. James's Gate Brewery in Dublin Ireland.

American punters have complained for years that the Guinness in Ireland is better than in America but the new Irish drink will not even be available in the old country!

When it arrives in US bars and stores April 24, the stout  will be the first one Guinness has brought to the United States since  the mid-1960s.

The 250th anniversary drink  will be available only in the U.S., Australia, and Singapore, says Diageo PLC, owner of Guinness and the world's largest liquor producer. The company's other brands include  Baileys and Bushmills.

The beer is expected to be available for about six months, said Patrick Hughes, brand director for Diageo Guinness USA.