“I don’t have music pouring in my ears all the time.”

Diane Keatondidn’t exactly have Bieber Fever when she agreed to star in one ofJustin Bieber’s music videos.

“I couldn’t believe it.

Diane Keaton, Justin Bieber

Justin Bieber; Diane Keaton.Theo Wargo/Getty Images;Steve Granitz/FilmMagic

she recalled during a recentMetrointerview.

“And of course it was so much fun.

It couldn’t have been more fun.

I can’t believe it.

I still can’t believe it.”

The video opens with Keaton and Bieber celebrating his fictional grandfather’s birthday just before his death.

In the end, she goes on a date that Bieber sets her up on.

“I mean, I didn’t even know him,” she explained.

“I don’t know why me.

I still don’t understand,” she continued.

“I don’t know how, but I loved it.”

“He’s a great young man.

Gorgeous and genius,” she remarked as the music video played on screen behind her.

“It was one of the most pleasant experiences of my life.”

“He’s the greatest guy,” she continued.

“Honest to God, he’s really special.”