In other news, Mark's former bandmate in Creed, frontman Scott Stapp, is set to feature in upcoming HBO documentary Woodstock 99: Peace, Love, And Rage.
Debuting on July 23, the film "focuses a spotlight on American youth at the end of the millennium, in the shadow of Columbine and the looming hysteria of Y2K, pinpointing a moment in time when the angst of a generation galvanised into a seismic, cultural shift.
"Set to a soundtrack of the era’s most aggressive rock bands, the film also reappraises the 1960s mythos, revealing hard truths about the dangers of rose-tinted nostalgia in the age of commercialism and bottom-line profits.”
As well as going onstage with bands on the line-up, Woodstock 99 also shows "cramped campsites, overflowing bathrooms and marauding groups of young men with alarming immediacy and access”.
Watch the trailer below: