Washington (PTI): It was a day of triumphs for Democrat presidential hopeful Barack Obama -- beating both the Clintons in style.

The Illinois Senator won Grammy Award for 'best spoken word album' for the audio version of his book, "The Audacity of Hope: Thoughts on Reclaiming the American Dream".

Obama pipped former US President Bill Clinton for the prize, just hours after winning the Maine Democratic caucuses defeating his rival and Bill's wife Hillary Clinton, sweeping all the five primary contests held during the weekend.

Bill Clinton had been considered for the audio version of his book "Giving: How Each of Us Can Change the World". Another former Democratic president Jimmy Carter was also nominated in the category for "Sunday Mornings in Plains: Bringing Peace to a Changing World."

It was Obama's second Grammy. His first win came two years ago for the audio edition of "Dreams From My Father."

Bill Clinton has also won two Grammys in the category so far, while Hillary had once taken the top honours, for "It Takes a Village."

Obama, however, was not present at the Los Angeles Convention Center to receive the prize.

"The Audacity of Hope" lists Obama's policy positions on a host of issues, from healthcare to the war in Iraq.