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Glee, Amber Riley, Naya Rivera, Heather Morris

Frank Micelotta/FOX

Psst. Do you wanna watch what will surely be one of your favorite Glee numbers ever?

Seriously, this Adele mashup from next week's episode (which was also Glee's historic 300th number), will knock your socks right off. Not only do the Troubletones kill "Rumour Has It" and "Someone Like You," but Santana (Naya Rivera) might bring you to tears with her haunting rendition of the latter. Why?

Because it is quite clear she's singing to Brittany (Heather Morris).That makes the lyrics that much more devastating. Not exactly something Brittana fans want to see or hear. In fact, is it just us or do they both look heartbroken during the number?

Plus, Mercedes (Amber Riley) wailing on a song never hurts anybody. New Directions, you are definitely in trouble.

Have a look at the video below for yourself, and then go down to the comments and tell us how many times you've watched it on repeat. We're up to seven.

Glee airs Tuesday nights at 8 p.m. on Fox.