ABC's Ammu Kannampilly reports from London: It’s arguably the world’s most famous beer and today, Guinness celebrates its 250th birthday. Celebrations kick off in Dublin, Ireland, where a host of musicians including Kelly Rowland, Sir Tom Jones and Kasabian will perform at venues across the city. But that’s not all — the Black Eyed Peas will be performing in Kuala Lumpur, Malaysia and Sean Paul will entertain crowds in Lagos, Nigeria. It’s unsurprising that Guinness is throwing a global shindig to commemorate Arthur’s Day – named after Arthur Guinness, the founder of Guinness, who signed a 9,000 year lease on Dublin’s St James's Gate Brewery 250 years ago. In fact, Nigeria is one of Guinness’s biggest markets – according to a report published in the Los Angeles Times, “Guinness now sells more beer in Nigeria than it does” in Ireland. If you are lucky enough to live in one of the 4 cities – Dublin, Lagos, Kuala Lumpur, and New York – hosting tonight’s concerts, go to the Guinness website to get more details on what’s happening where. The party kicks off at 5.59 pm in Dublin with a toast to Arthur Guinness, before carrying on to other cities. Guinness is now brewed in almost 50 countries, with ten million glasses drunk around the world every day.