Step 1: Gooooooooooogle!
And then click on the link that says "Download WavePad for Windows (Free Version)" It should take about 2 minutes to download at the most.
Step 2: Fun With WavePad!
Hit The "Open" Button And Upload A Song Downloaded From LimeWire Or From A CD Or Really Anywhere! And After That, Go To Effects, And Go Down To Pitch Change. Change the 100 You See To Anywhere Between 170 - 200 And Then Click Preview! If You Want The Song To Be A Deep And Mellow Song (Not chipmunked) Then Change It To 85%