(Cover) - EN Showbiz - Ozzy Osbourne shed tears while he watched a documentary about his life over the weekend.

The veteran rocker has been in the music business for more than 40 years and is best known as the frontman of Black Sabbath. Ozzy broke down on Sunday evening when he attended a screening of God Bless Ozzy Osbourne at the Tribeca Film Festival in New York. His son Jack Osbourne produced the documentary, which follows his prolific career and hellraising lifestyle, and Ozzy was deeply touched by the project.

Ozzy actually cried when his best friend Rudy Sarzo spoke about him, Jack revealed to the New York Post. It was very moving."

Ozzy was quick to gather his emotions after the screening and returned to his usual humorous self. The 62-year-old musician never expected to enjoy such a lengthy and successful career and was thrilled to watch it all unravel on the big screen.

"It is very difficult talking about yourself [on film], you don't want to come over like a Did I think I was ever going to last this long? You've got to be f**king joking," he quipped.

Ozzy was accompanied to the screening by his wife Sharon and his daughter Kelly. Reality star Kelly also made no secret of her admiration for her brother. She was overheard telling Jack after watching the documentary, "I cried the whole way through. I am so proud of you." (C) Cover Media