The pandemic may have taken away many of the things we enjoy, but it can't wipe a holiday off the calendar.And at McDonald's, it's not going to stop them from serving their most popular holiday shake.With St. Patrick's Day approaching, McDonald's has officially announced that the Shamrock Shake will return.For more than 50 years, fans have eagerly awaited the annual return of the Shamrock Shake, counting on the arrival of Shamrock Shake Season to mark the unofficial start to spring, Chad Schafer, McDonald's.This year, McDonald's is keeping the good vibes rolling by selling the Shamrock Shake nationwide. And that's only happened sporadically since its first national rollout in 2012.So on February 15th, head over to McDonald's, and see what the Shamrock Shake hype is all about