As if you weren't already aware, today is St. Patrick's Day - the day that the Irish are celebrated around the world.
Many musicians and other celebrities have been sending greetings via Twitter, from members of One Direction and Bette Midler to actor Dean Cain and footballer Rio Ferdinand.
Below are a selection.
Happy St. Patrick's day. Hope everyone has a good one.
— Harry Styles. (@Harry_Styles) March 17, 2015
Happy St.patricks day to all my fellow paddys! you know the drill for the 17th of March, I'm at it all already! #ProudToBeIrish ðŸÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ?€ðŸÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ?»ðŸÅ½¶ðŸÅ½»
— Niall Horan (@NiallOfficial) March 17, 2015
Good man, Niall.
Happy St Patrick's Day everyone !!!!!
— Louis Tomlinson (@Louis_Tomlinson) March 17, 2015
Happy St Patrick's Day everyone!
— Kodaline (@Kodaline) March 17, 2015
And a Happy St. Patrick's Day to all the Irish and all those who wish they were! And today, that's about everybody!
— Bette Midler (@BetteMidler) March 17, 2015
Celebrating St.Patrick's Day a wee bit early! #HappyStPatricksDay pic.twitter.com/NxD1WF8wA0
— Dean Cain (@RealDeanCain) March 16, 2015
At the St. Patty's Parade in Philadelphia with Katie. Everyone is Irish on St. Patrick's day! Love, Neil McDiamond pic.twitter.com/Nk5h8ksDW3
— Neil Diamond (@NeilDiamond) March 15, 2015
Neil Diamond, you have committed the cardinal sin. #paddynotpatty
Happy St Patrick's Day everyone. pic.twitter.com/IX8yfWVQok
— Jimmy Carr (@jimmycarr) March 17, 2015
Happy St Patricks day to all celebrating ...especially if you are slurping on the black velvet - enjoy !
— Rio Ferdinand (@rioferdy5) March 17, 2015
Happy St. Patricks Day every1, hope u all have a great day ðŸ'ÂÂÂÂÂÂÂ?ðŸÂÂÂÂÂÂÂ?€ðŸÂÂÂÂÂÂÂ?€ðŸÂÂÂÂÂÂÂ?€ðŸÂÂÂÂÂÂÂ?€ðŸÂÂÂÂÂÂÂ?€ pic.twitter.com/6IVTEzRE8U
— Shay Given (@No1shaygiven) March 17, 2015
Today the world turns Green Happy St.Patricks Day from Jedward pic.twitter.com/XVDcX3tlx3
— JEDWARD (@planetjedward) March 17, 2015
A very Happy St Patricks day to everyone around the World . Have a great and enjoyable one !
— Paul McGrath (@Paulmcgrath5) March 17, 2015
Thank you St Patrick for getting rid of the snakes from Ireland. I pity the English, who still have to shake out their boots each morning
— David O'Doherty (@phlaimeaux) March 17, 2015
how he killed the early 1990s snakes pic.twitter.com/1F3lL0Kedy
— David O'Doherty (@phlaimeaux) March 17, 2015
Today is St Patrick's Day. For those who don't know, he's the patron saint of pretending to be Irish. (No offence to real ones)
— James May (@MrJamesMay) March 17, 2015