I need help identifying a track?

[Larissa Pearson]

I don't know who sings it and what the title of the song is but I think it's a classic house track with a female voice.

http://www.youtube.com/watch?v=3GupeGwFIVc

[purex like soap]

Switch - A Bit Patchy (Eric Prydz Remix)

[Larissa Pearson]

Thank you ;)