> favorite [popular] musician that doesn’t sing

He's looking at the wrong chart.

Looking at this week's Billboard electronic/dance chart I see: David Guetta, Tiësto, Illenium, Marshmello, Calvin Harris, Chainsmokers, Skrillex ...

All extremely popular musicians who are known primarily as producers/DJs rather than vocalists. And there are tons of popular instrumental electronic and dance tracks.

Calvin Harris does actually sing (Feel So Close, Summer, etc.) but he's currently at #1 on the UK singles chart (Miracle) with Ellie Goulding on main vocals.