cant remember the title or artist

[emax2011]

Right need help, been bugging me all day

What is the song called with a girl walking along the street, you can only hear her footsteps at first before the song starts, I thought it was sung by Cassie but think in wrong, cheers

[mushroom25]

this maybe?

http://www.youtube.com/watch?v=PIE5QtkxzvM