Need help naming a song...(should be a popular one)

[iwakura]

Well, I was in Macy's today, and this song that was playing in the background has been stuck in my mind for the past few hours. Can anybody help me name it?

It had some lines like "dj you don't know what you do to me" or something...sung by a woman, hip-hop style music.

any ideas?

edit: it has a music video that I believe is played on MTV as well, if that helps

 

[Man18]

B5 song... You dont know?

 

[fischju]

You dont know - B5

 

[ZzzZilla]

Madonna's "Music"?

 

[cherryduck]

Last Night a DJ Saved My Life?