Mp3 Downloads Instrumentals

Where can I find and download mp3 for digital mixing?

Through the Internet where I can find and download mp3 for digital mixing? I'm using Virtual Software DJ and I would mix acapellas and instrumentals. There are some sites that cater to digital DJ?

GOOGLE IT … there was something called EJ or something: S

Miley Cyrus “The Climb” Instrumental (with back vocals) + HQ MP3 DOWNLOAD