President Barack Obama celebrated St Patrick’s Day on Saturday with a quick trip to a popular Washington DC Irish bar, where he contentedly quaffed a pint of Guinness surrounded by hundreds of excited, green-clad and, errrr, “jovial” partiers.

1. U.S. President Barack Obama (C) gives a thumbs-up as he celebrates St. Patrick’s Day with a pint of Guinness during a stop at the Dubliner Irish pub in Washington, March 17, 2012. REUTERS/Jonathan Ernst

2. БU.S. President Barack Obama (C) shares a toast with his ancestral cousin Henry Healy (L) of Moneygall, Ireland, as he celebrates St. Patrick’s Day with a stop at the Dubliner pub in Washington, March 17, 2012.

3. U.S. President Barack Obama (R) celebrates St. Patrick’s Day with a stop at the Dubliner Irish pub in Washington March 17, 2012.

4. .S. President Barack Obama drinks a pint of Guinness as he celebrates St. Patrick’s Day with his ancestral cousin Henry Healy (C) and Ollie Hayes (R), owner of a pub in Moneygall, Ireland that Obama visited in 2011, during a stop at the Dubliner pub in Washington March 17, 2012.

5. U.S. President Barack Obama (L-R) laughs as he celebrates St. Patrick’s Day with his ancestral cousin Henry Healy and Ollie Hayes, owner of a pub in Moneygall, Ireland that Obama visited in 2011, during a stop at the Dubliner pub in Washington, March 17, 2012.

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