Nashville’s Biggest Saint Patrick’s Day Party! On Friday, March 17th, 2017, head to The Greenhouse Bar to celebrate the 18th Annual St. Patricks’s Day Party: Shamrocks & Shenanigans. We will be rockin’ and rollin’ from 11am until 2am. This is the city’s largest St. Patrick’s Day celebration with over 3.500 attendees throughout the day in years’ past. Entertainment will include live music, NCAA March Madness, lawn games by day and Nashville’s finest DJ Aydamn by night. Drink specials will be a plenty, and your favorite local food trucks will be there so you can get your fixin’s. Come ready to party, and don’t forget your green: no one wants to get pinched 3,500 times.