What are all of the songs SNSD/ Girls generation have sung?

I'm really into SNSD and i wanted to find all of the songs they ever sang, including covers :) does anyone know a few?. i have Oh, Genie, Run devil run, chocolate love, 1 2 step, umbrella, pokerface, come on over, hoot, echo, cabi song , gee, tik tok, visual dreams, wake up and mistake. :) please help