Saturday Night Live: Jake Gyllenhaal makes a surprise appearance as John ...

He starred in an acclaimed Broadway production of Sunday In The Park With George.

Jake Gyllenhaal, 39, added some surprise star power to Saturday Night Live as comedian John Mulaney, 37, had a hilarious third time hosting. 

Mulaney played to his strengths in the monologue with a hilarious stand-up set featuring tangents about how terrible men are at making friends and the idiosyncrasies of the Bill of Rights.

Double trouble: Jake Gyllenhaal, 39, added some surprise star power to Saturday Night Live as comedian John Mulaney, 37, had a hilarious third time hosting

Double trouble: Jake Gyllenhaal, 39, added some surprise star power to Saturday Night Live as comedian John Mulaney, 37, had a hilarious third time hosting

The comedian was on screen from the opening sketch, about a press conference on the COVID-19 coronavirus that was derailed by the Democratic presidential primary candidates, in which he played a vaudeville-style Joe Biden.

Fred Armisen, Rachel Dratch and Larry David also guest-starred as former NYC Mayor Michael Bloomberg, Senator Amy Klobuchar and Senator Joe Biden.

After the break, John starred in a TCM segment of 'Fiddler On The Roof for W.A.S.P.s, The Sound Of Music.'

He played the Nazi boyfriend of the eldest von Trapp daughter, played by Cicely Strong.

During a performance of Sixteen Going On Seventeen, he revealed he was actually in his forties, which seemed to worry her a bit more than the Nazi thing.

'In a few months, this will be the least of your worries,' he joked.

Laugh riot: John played to his strengths in the monologue with a stand-up set featuring tangents about how terrible men are at making friends and the idiosyncrasies of the Bill of Rights

Laugh riot: John played to his strengths in the monologue with a stand-up set featuring tangents about how terrible men are at making friends and the idiosyncrasies of the Bill of Rights

Hit the ground running: The comedian was on screen from the opening sketch, about a press conference on the coronavirus that was derailed by the Democratic presidential candidates, in which he played a vaudeville-style Joe Biden

Hit the ground running: The comedian was on screen from the opening sketch, about a press conference on the coronavirus that was derailed by the Democratic presidential candidates, in which he played a vaudeville-style Joe Biden

Classic: After the break, John starred in a TCM segment of 'Fiddler On The Roof for W.A.S.P.s, The Sound Of Music'

Classic: After the break, John starred in a TCM segment of 'Fiddler On The Roof for W.A.S.P.s, The Sound Of Music'

Toxic relationship: He played the Nazi boyfriend of the eldest von Trapp daughter (Cicely Strong). During a performance of Sixteen Going On Seventeen, he revealed he was actually in his forties

Toxic relationship: He played the Nazi boyfriend of the eldest von Trapp daughter (Cicely Strong). During a performance of Sixteen Going On Seventeen, he revealed he was actually in his forties

John was back for the next sketch, as the father of a daughter who was celebrating that she just got accepted into Stanford.

He lost his temper on his nephew (played by Pete Davidson) after he created a meme from his Facebook profile photo.

He put on a slideshow of the memes full of gratuitous self owns in front of his own family.

Brutal: John was back for the next sketch. He lost his temper on his nephew (Pete Davidson) after he created a meme from his Facebook profile photo

Brutal: John was back for the next sketch. He lost his temper on his nephew (Pete Davidson) after he created a meme from his Facebook profile photo

Awkward: He put on a slideshow of the memes full of gratuitous self owns in front of his own family

Awkward: He put on a slideshow of the memes full of gratuitous self owns in front of his own family

Beck Bennet and Kyle Mooney joined John in the next digital short playing themselves trying to write for this week's episode.

Kyle tried to keep a smile on his face even as he was dying on the inside after John and Beck would only cast him as a 'dork.'

He built a personal gym in his and Beck's office, fully stocked with weight and his trainer Justin Theroux, playing himself.

Kyle showed up two days later with bulging biceps and a chiseled chin after putting on 37lbs of muscle — in two days — so that he could star in a male strip club sketch John was writing.

But after extensive rewrites, John only wanted dorks in the sketch, so beefcake Kyle was cut again, and then fired from SNL for good measure.

Digital short: Beck Bennet and Kyle Mooney joined John in the next digital short playing themselves trying to write for this week's episode

Digital short: Beck Bennet and Kyle Mooney joined John in the next digital short playing themselves trying to write for this week's episode

Pumping iron: Kyle tried to keep a smile on his face even as he was dying on the inside after John and Beck would only cast him as a 'dork.' So he built a gym in their office, with the real-life Justin Theroux as his trainer

Pumping iron: Kyle tried to keep a smile on his face even as he was dying on the inside after John and Beck would only cast him as a 'dork.' So he built a gym in their office, with the real-life Justin Theroux as his trainer

Bulking up: Kyle showed up two days later with bulging biceps after putting on 37lbs of muscle — in two days — so that he could star in a male strip club sketch John was writing

Bulking up: Kyle showed up two days later with bulging biceps after putting on 37lbs of muscle — in two days — so that he could star in a male strip club sketch John was writing

Worth it? But after extensive rewrites, John only wanted dorks in the sketch, so beefcake Kyle was cut again, and then fired from SNL for good measure

Worth it? But after extensive rewrites, John only wanted dorks in the sketch, so beefcake Kyle was cut again, and then fired from SNL for good measure

Next up, Kate McKinnon and Aidy Bryant starred as sisters in an old-timey black and white segment of the 1950s show Say, Those Two Don't Seem To Like Each Other.

They were competing for the love of a visiting admiral who was going to choose one of them as a wife.

The two tried to sabotage each other with increasingly elaborate passive-aggressive moves.

'Why, sister, your hair is a mess. Why don't you put on this hat,' said Aidy, slamming an anvil onto the table.

Kate

read more from dailymail.....

Get the latest news delivered to your inbox

Follow us on social media networks

PREV Carrie Underwood shares flashback photo with singer Bryan White
NEXT TALK OF THE TOWN: Humble Princess Anne shows 'call me Harry' what being ...