I know of these two because of work they have done with other artists. KB did Northern Sky with
Capital Kings (great song if you like hip-hop, btw) and Tedashii did a song with Blanca: Not Backing Down (also an epic song).
He's only 50. Also he just came out a new album, The Elements, so he's still making music.
Also, you know, NF and Lecrae do some decent Christian hip-hop stuff if that's your jam. NF is grimdark and spooky, and you might want to check out Lecrae's earlier work - he might have gotten more secular as time goes on. Ask your parents first, and there is extensive Plugged In reviews for both artists.