"Glee" comes to an end on March 20 after six seasons of catchy covers, very special episodes, and tug-super-hard-at-your-heartstrings moments. While the fanfare and critical acclaim may have died down over the years, it's hard to deny that the series lived up to its title and brought tons of joy (and sometimes tears) to audiences throughout its run. Let's remember the show that made glee club cool and bursting into song in the middle of a sentence on TV totally not weird or anything. Here are 9 "Glee" episodes we'll always remember.