Just Dance... imo.

Just Dance

Just Dance. It was everywhere.

And it's the better song too imo.

Roar.

That's kinda hard. They're both insanely massive. I still hear JD from time to time.

At their peak, probably Roar; but for longevity, you're gonna have to wait Though I think it might be Katy since Roar is an AC monster.

I agree, they were both massive.

Roar was bigger and better

Just Dance definitely.

Roar

Roar is safe and boring

Just Dance

The pop cultural defining, top 40 rejuvenating, iconic Just Dance

This.

A better comparison is JD vs IKAG since they were literally released at the same time. Roar is still fresh and has time to grow. JD has been out for over six years and still gets ton of recurrent airplay.

Just Dance is way bigger

I still listening to JD and I gonna vote for that