I said it before, I will say it again: Instead of looking at the negativity of taking a secular tune and putting Jewish lyrics to it, why can you not look at it as an elevation of kedusha for an otherwise nice melody, by infusing it with the Yiddishe tam of words of Tehillim or Shir Hashirim, etc.?
When I hear Gershon Veroba’s rendition of I Believe the Children are Our Future (a Whitney Houston song from long ago), referring to developmentally-challenged children, it brings tears to my eyes. Uncle Moishy uses MANY, MANY secular tunes (and from kids cartoon shows like Bob the Builder) to make lovely songs that the children remember and sing all the time.
Try not to be so judgmental of something that is really not hurting you. So what if they play Eye of the Tiger when the Chosson and Kallah come out. In a very frum crowd, most people do not even know the source of the song (and if they do – that means they are listening to that type of music on the radio!)