This week's 'That Metal Show' will feature a pair of rockers who have kept the rock spirit alive in four different decades. The main panel guest of the night will be Motley Crue's Mick Mars. The guitarist, making his first ever appearance on the show, will also be joined by Cinderella frontman Tom Keifer, who is also promoting his new 'The Way Life Goes' solo album.

Mars uses his time to update fans on the upcoming Motley Crue "Final Tour," and he also discusses his health, writing music outside of Motley Crue and what it's been like to be a member of one of rock's most notorious bands for over 30 years. Mars reiterates the fact that this is Motley Crue's final tour, and backs up his statement by revealing, "If there is another tour, I'll give everyone in the world tickets for free."

As for Keifer, the vocalist shows off his guitar skills, strapping on his steel Trussart guitar and delivering some powerful blues-rock riffs during the ins and outs of the commercial breaks. He also christens the new TMS house amp, a Fender EVH 5150 half stack that was donated to the show by Eddie Van Halen.

Viewers can also look for Metal Church's Kurdt Vanderhoof stopping by as he joins the hosts in debating the Top 5 Motley Crue Songs. Kurt also takes part in the "Throwdown" in which Mars and the three hosts debate which of Motley Crue's first two albums -- 'Too Fast for Love' or 'Shout At the Devil' -- was the better disc.

Be sure to tune in for Mick Mars, Tom Keifer and Kurdt Vanderhoof on this week's edition of VH1 Classic's 'That Metal Show,' airing at 10pm Tonight.