I have long grieved the loss of substantial theology communicated in music from Christian artists, especially the music we hear on the radio. It didn't used to be like this. Two decades ago there was way more theology packed into songs written by Christians for popular enjoyment and encouragement.
It seems to me that these days Hip Hop artists are leading the way when it comes to addressing the void of good theology in popular music. Here would be a good example.
More music from them here.