"My heart is full of so much sadness and sorrow, but also so much love and gratitude. I got 14,501 days with that man and I know that is such a blessing," the metal legend's youngest child wrote

Jack Osbourne opened up about his late father and rock legend Ozzy Osbourne in an emotional Instagram tribute Wednesday, revealing that he is struggling with the loss while celebrating how much of a blessing it was to have the iconic musician as his dad.