Watch Billy Crystal’s Perfect Muhammad Ali Impression

Comedian Billy Crystal repeated his famous Muhammad Ali impression during a eulogy for the boxer Friday.

“Everybody’s talking about George Foreman… George Foreman is ugly. He’s so slow,” Crystal said in his Ali voice. “I’m so fast I can turn off the lights and be in my bed before the room gets dark.”

The impression brought a moment of levity to a series of speeches from a long list of notable figures including former President Bill Clinton apparently chosen by Ali before his death last week.

“He decided, very young, to write his own life story,” said Clinton. “He decided that he would not be ever disempowered.”