Name of Rap Songs & Artists

[mfcubs24]

These are both rap songs that I heard on the radio. The first one goes like, "Yeah She know she think wit it" "Do It with no hands"(in the background). The next one sounds like it keeps saying "Head Knockin'" but i'm too sure. Please Help!

[Steena]

probably this one? Hakeem Tha Dream - Think Wit it
http://www.djbooth.net/index/tracks/...-thick-wit-it/

wow.. it results in a headache after 7 seconds.....