For a song to be avoda zara, it does not need to include any names of avoda zara.
R’ Moshe assers gospel songs with words of Psalms, (i.e. Tehillim) if made by non Jews, since we assume the intent is for avoda zara.
Even if it were sung wordlessly, it would be mechuar hadavar, and we would dismiss a chazan who insisted on singing it, so why would anyone defend it? In fact, though, if the words remain largely intact and the theme is the same, it should be assur m’dina.