Will Smith appears to slap Chris Rock following Oscars joke about Jada Pinkett Smith

Sunday night's presentation of best documentary feature was something the Oscars strives to be, indelible and unforgettable.

Before presenting the Oscar for the category, comedian Chris Rock joked on Jada Pinkett Smith's hair loss

Pinkett Smith's husband, Will Smith stormed onto the stage and appeared to slap Rock.

He then returned to his seat, and appeared to shout, "Keep my wife's name out of your f***ing mouth."

Viewers did not hear Smith's invective, as the Oscar producers cut the sound. Instead, they saw only a visibly shaken Rock staring after Smith.

"I want to apologize to the Academy. I want to apologize to all my fellow nominees," Smith said. "Love will make you do crazy things."