Tom Werman, is been around since the 1.970s producing Ted Nugent, Cheap Trick, Mother's Finest - so many bands of the 1.970s.

And in the 1.980s he did Motley Crue, Poison, and some numerous numerous bands.

Then Jeff sang background on an album of the band Stryper ("Against The Law") back in 1.991, and the producer of it was Tom Werman.

Jeff told the whole history on 2003 Russian Interview here is some part:

"I was hired by Stryper because I was good friends with them, but I guess I impressed Tom Werman so much with the way I work and how fast I was - basically I could sing any range - that he hired me then for the next six albums that he produced - Lita Ford ("Dangerous Curves"), Steelheart ("Tangled In Reins"), Babylon A.D. ("Nothing Sacred"), Stryper ("7: The Best of Stryper"), a band called Pariah ("To Mock A Killingbird"), and on all those albums I sang background vocals for him."

PD.- I am still researching which albums J didn't remember on this interview