Do these look like new perennial sunflowers to you?

Ok so 2 years ago, I planted a pair of perennial sunflowers along the back edge of my lawn. They died in the winter and the next year (last year), they came back. Died again, and this year, each spot has a whole bunch of these things growing. Are these them? I can't tell if these are weeds or sunflowers! If they're weeds, I want to yank em quick! But of course if they're sunflowers, Thats great…