Singer's son Jack shares clip of his three young daughters rocking out to "Papa's" hit
Guitarist briefly played with Ozzy following Randy Rhoads' death
Doctors advise "six weeks with no travel" while singer recovers from pneumonia
Black Sabbath frontman was hospitalized following flu complications
Singer recently postponed entire U.K. tour after suffering upper respiratory infection
Singer reveals how cameras made him feel like paranoid "fucking laboratory rat"
"Today marks the 37th anniversary since I bit a head off a f*cking bat!"
Watch celebratory action from all-star New Year's Eve event in L.A.
No word yet on if the band will attend to accept the trophy