Who is the singer that sounds a lot like Russell Allen? I'm still not able to pick out the different voices (partly because the album is still new, but also because I haven't really listened to any of these singers before, believe it or not)
Hmm....I wouldn't say anyone on this album really sound like Russell, but I think you are either thinking Ronnie Atkins or Biff Byford.
From wiki
Joe Lynn Turner (ex-Rainbow, ex-Yngwie Malmsteen) (on tracks 1, 2, 6, 10)
Michael Kiske (ex-Helloween, Place Vendome, Unisonic) (on tracks 4, 6, 9)
Biff Byford (Saxon) (on tracks 3, 6, 10)
Ronnie Atkins (Pretty Maids) (on track 7)
Eric Martin (Mr. Big) (on track 8)
Bob Catley (Magnum) (on track 10)
Cloudy Yang (on track 5)