All eyes are now on Glee‘s final episode of season 3 – poised to be a big one as we see several cast members graduating.

Take a look at this sneak peek, which was released at the end of tonight’s new episode. One thing is for sure: relationships will be tested. Glee 3×22 “Graduation” airs Tuesday, May 22 at 8 p.m. ET/PT on Fox.

This will be the final time that Glee airs on Tuesdays. Season 4 will see Glee move to Thursdays at 9 p.m. ET/PT following new episodes of The X Factor.