who sings these two songs?

Question

both songs are somehow techno, house club music..

The first one goes something like that:
" I say rock(not sure about this word)
what's the matter with you rock
cant't you see i need you rock...."

The other one, its title is i think "sadness" and it goes something like that:
" In this sadness..." this is all i can recall, the singer is a woman.

Thanks

ps: the qst can imply that the singer is the same for both songs, it was just a mistake...the singers are different for both of them.

Answer 1

For the first song. It is Sinnerman by Nina Simone. I think the version you mean is by Felix Da Housecat.

Answer 2

I couldn't Google either one. The top one is a cover tune originally perfected by jazz vocalist Nina Simone. Listen to the original when you get your info. You'll love it.