I need to Sing a song for a wedding: but i need the song music to play with out the lyrics...HELP!?

I have 2 songs to sing. First is From this moment on by Shania Twain, and the second is You are by Gary V. I need to have the music played over the loud speaker, but have no lyrics (seeing that i'm going to be doing the singing) is there a site or something that i can use to extract the voices>?? Please HELP!