This is so sad.
The bundle of bubblegum pop was spotted slinking out of Jessie Ware's El Lay concert Wednesday (above), but was noticeably missing a certain bluesy crooner…
Where you at, John Mayer?!
But we are surprised Mayer didn't join Katy at Jessie's shindig! We imagine he'd be way into her soulful sounds!
Perhaps Johnny boy was off practicing live singing now that his throat problem seems to have resolved itself?
Hopefully Katy's solo outing is NOT an indication that the pair is starting to split at the seams!
P.S. - What the hell is their celeb-nickname, folks? Have they been bestowed one? Jerry, perhaps? Jaty? Marry?! Oh, wouldn't that be telling!
[Image via AKM-GSI.]