“He’s gonna do it!

He’s gonna do it!

He’s gonna f—in' do it!”

SATURDAY NIGHT LIVE – Episode 13 – Aired 02/23/2003 – Pictured: (l-r) Chris Kattan as Buddy Mills, Christopher Walken as Vic Lester during “The Rialto Grande” skit (Photo by Dana Edelson/NBCU Photo Bank/NBCUniversal via Getty Images via Getty Images)SATURDAY NIGHT LIVE – Episode 5 – Aired 11/12/2005 – Pictured: Musical guests The Foo Fighters perform onstage November 12, 2005 (Photo by Dana Edelson/NBCU Photo Bank/NBCUniversal via Getty Images via Getty Images)SATURDAY NIGHT LIVE – Episode 5 – Aired 11/12/2005 – Pictured: Musical guests The Foo Fighters perform onstage November 12, 2005 (Photo by Dana Edelson/NBCU Photo Bank/NBCUniversal via Getty Images via Getty Images)SATURDAY NIGHT LIVE – Episode 5 – Aired 11/12/2005 – Pictured: Musical guests The Foo Fighters perform onstage November 12, 2005 (Photo by Dana Edelson/NBCU Photo Bank/NBCUniversal via Getty Images via Getty Images SATURDAY NIGHT LIVE – Episode 5 – Aired 11/12/2005 – Pictured: Musical guests The Foo Fighters perform onstage November 12, 2005 (Photo by Dana Edelson/NBCU Photo Bank/NBCUniversal via Getty Images via Getty Images))

Christopher Walken and Dave Grohl on ‘Saturday Night Live’ in 2003.Credit:NBC/Getty (2)

NBC/Getty (2)

Ladies and gentlemen: footage of a critical moment ofSaturday Night Livehistory just dropped.

‘FooFighters’ or ‘FooFighters’?"

Back in the contemporary interview, Grohl recalled the joy of hearing Walken say their name.

SATURDAY NIGHT LIVE – Episode 16 – Pictured: (l-r) Will Ferrell as Gene Frenkle, Christopher Walken as Bruce Dickinson during “Behind the Music” skit on April 8, 2000

Will Ferrell and Christopher Walken on ‘Saturday Night Live’.NBCU Photo Bank/NBCUniversal via Getty Images

He’s gonna do it!

He’s gonna f—in' do it!'"

“Pin-drop silence, and he says, ‘Ladies and gentlemen, FooFighters.'”

“I rewrote it with Walken in mind,” Ferrell said.

“I was just like, ‘What’s some weird stuff Walken could say?’

He fits in almost anything in the weirdest way.”

“Christopher Walken, for air, upped his game,“Jimmy Fallonsaid.

“He was almost doing an impersonation of Christopher Walken.

He was talking like no other human being would talk, ever.”

Chris Parnelladded, “He brought his perfect thing to it.”

Ferrell didn’t anticipate Walken swinging so hard on live television.

I really gotta keep it together here,'” he recalled.

SNL50: Beyond Saturday Nightis now streaming on Peacock.