How do I hear and record the mp3 downloaded track?

I followed all of the directions to rip the track format to WAV, then import it to Audacity. I see where this was done successfully. When I press play or record, The track does not play. Audacity does however, pick up my voice from the microphone.
How can I hear the track I will be singing to???

Overdubbing or Sound On Sound takes a few more special settings than just straight recording. You need to adjust Recording Latency and tell Audacity to record and play at the same time.

Please note that almost no computer will feed your own live voice back to you properly in real time. There’s always an echo or delay. The only way to solve that short of making a new Audacity (recompiling) is to use the hardware devices we reviewed – or ones like them.