Just a thought or two . .
If you aren't going to sing, you might make your program more interesting by telling a little about the history or a small story about each song as you introduce it.
Something like, "This song was first introduced in 1951--do you remember what you were doing then? It became a number one hit for ****. He later went on to have his own t.v. show..." Whatever, you get the idea. Get them involved.
DonM