No. Most artists by quantity don't do live performances. And live performances are a lot of work for not a lot of money, unless you're Taylor Swift or one of her peers. Ticket sales end up getting split about 20 different ways.

For example, Miracle of Sound doesn't do live performances, because his music is all electronic and created by one person.

Plus, I can take my music and do "live" performances of it too. I can also hire folks (say, DJ's) to do these "live" performances on my behalf.