Need to record my voice over a karaoke track(mp3 converted to wav) but when playback, track music is missing.

I have mp3(karaoke track) converted into WAV, want to record vocals over it, hear the track and voice in headphones while recording?

I tried recording in above fashion and i was able to monitor the track and my voice in headphones but when i played back the recording, I am only able to hear my voice but track music is missing.

I want to record complete song , it's just that my voice will get added to it.

I have just now purchased the setup, kindly guide with step by step process to achieve what i am looking for.

Expecting your early response.