Kelly, John Barclay and Johnnie Beattie will start together for the first time for Scotland in Sunday's Six Nations opener against France at Murrayfield.
The trio are cult favourites at Firhill but not for much longer, with the blindside flanker having decided to leave for Saracens at the end of the season.
Yet, the 27-year-old hopes to maintain the bond he has formed with the two Johns on the international stage, starting this weekend.
"Obviously, it's great," he said of that prospect and of the moniker the trio have been awarded.
"The fans seem to like it but, as a unit on Sunday, we'll just try to get stuck into the French and do as well as we can."
Barclay, Beattie and Brown have been central to Glasgow's rise to the top of the Magners League this season and the latter believes keeping that back row intact at Test level could help Scotland get off to a winning start.
"I think it's got to really because, obviously, we've played as a unit time and time and time again," he said.
"We know each other's game and I would say that's only going to help."
And the trio's relationship runs deeper than that of colleagues, with Kelly adding: "I actually used to share a flat with Johnnie Beattie, so we're very close."
The 'Killer Bs' were just three of nine Warriors selected by Andy Robinson for his first Six Nations game as head coach.
"It's only a good thing," said Kelly of the dominant influence Sean Lineen's side now have in the Scotland set-up.
"Things at Glasgow are going well and it obviously shows through with the squad that's been picked."