Def Leppard

The NFL returned to London on Sept. 28, and the members of Def Leppard were on hand to amp up the action -- minus guitarist Vivian Campbell, whose latest round of cancer treatment forced the band to seek sub-in help from Trixter's Steve Brown.

Trixter guitarist Steve Brown will fill in for Vivian Campbell while the Def Leppard guitarist undergoes stem-cell treatment in his fight against Hodgkin's lymphoma.

Def Leppard guitarist Vivian Campbell sounds just as upbeat as ever about his chances of beating the Hodgkin's lymphoma he was diagnosed with in 2013, but his latest round of treatment will keep him off the road for a series of upcoming live dates.

Watch Kiss and Def Leppard get ice water dunked on them after a concert.

Touring with Kiss has given Def Leppard's Joe Elliott a new appreciation for their current lineup.

Iron Maiden and Def Leppard face off in the next round of fan voting for the Ultimate Classic Rock Hall of Fame.

Def Leppard's Phil Collen donned Paul Stanley's on-stage outfit for a fun take on Kiss' 'Deuce.'

Def Leppard's Joe Elliott made a surprise introduction for his tour mates Kiss in New Jersey.

Def Leppard will focus on a new album and world tour before considering another residency in Las Vegas.

We've got pictures from the recent Def Leppard and Kiss concert at the Forum in Los Angeles.