Hi everyone! I'm looking for this Klaine fic where Blaine is a performer (I'm pretty sure he's a famous singer) and at his final concert on tour Kurt comes on stage to sing a duet with him and the fans know they are together and are cheering and very supportive. I think the author had a setlist/fan made album cover of all the songs Blaine released, some of them from Darren's real songs, and other ones that Klaine wrote together in the fic. I think most or all of the fic is established!Klaine. Kurt is also a fashion designer from what I recall and one of his lines was called Klisses by KH (though I'm not too sure about that, it might be from a different fic altogether).
If anyone could help it would be much appreciated! This has been bugging me for days haha