Two Years: Max.

That's what they said.

https://www.youtube.com/watch?v=UpkoK0IWvhE (Memory, Cats, Stephanie Lawrence, Audi, Topic).

Optimistically.

https://www.youtube.com/watch?v=b8tqMLd4Jog (Kings & Queens, Ava Max, Offical Audio).

I, for one, am thinking;

One Lady Gaga. That's already pretty close to the required number of Lady Gaga's.