The band's drummer and co-founder also reveals why the band's plans to reunite with vocalist David Lee Roth fell through
The clip of 'Unfinished' was shared with fans on Instagram, alongside a series of family photos
'Unfinished' is the previously unheard final song the two brothers ever wrote together
“Now that my dad isn’t here to be a target, I guess he went to the next best thing”
Van Halen told the young Armstrong: "You’re the only one that understands me"
The pair often locked horns during their time in Van Halen
The one-time Van Halen frontman said he had reached out to the drummer recently but didn't hear back
The actor claims he had a "long, elaborate make-out session” with Valerie Bertinelli
Van Halen recorded guitar parts for one of Cornell's solo songs but the collaboration never came to fruition
The song was given a run out at Austin City Limits at the weekend