So sad and scary.
[Image via WENN.]
Oooh, how exciting!!
Simon Cowell himself organized the appearance, which will have the Gleeks performing a medley of their hit songs.
Just last week, the show announced that the there will be a Glee European tour next year, which will include stops in the UK and Ireland.
Not gonna lie, we're totally GLEEking out over this!!
Will U watch??