'Now we're Nine Direction!' Harry Styles and the boys join Paul Rudd and his Anchormen for SNL duet... and Kristen Wiig returns

'We'll stand back and blow kisses': Saturday's musical guests One Direction - Zayn Malik, Louis Tomlinson, Niall Horan, Harry Styles, and Liam Payne - joined host Paul Rudd onstage during his monologue

Three time's a charm? The 44-year-old funnyman kicked off his third hosting stint on Saturday Night Live by pointing out that he'd been previously overshadowed by past musical guests Beyonce and Paul McCartney

Frat-packers: But the Clueless hunk wasn't alone - he brought along his 'man-band' aka his Anchorman co-stars Will Ferrell, David Koechner, and Steve Carell

The Frat Packers puffed up their chest as Will taunted the British boyband with: 'Why don't you beat it, Menudo?'

After Rudd halted the testosterone overload they performed a duet of Starland Vocal Band's 1976 Grammy-winning hit, Afternoon Delight.

Then the artist formerly known as Ron Burgundy proudly announced: 'Now we're Nine Direction!'

The NBC sketch show's opening gag involved the happy and very welcome return of yet another SNL alum - Kristen Wiig.

The 40-year-old actress gleefully donned her prosthetic five-head, baby arms, and fake tooth to reprise her Dooneese character.

Sexy song: After Rudd halted the testosterone overload they performed a duet of Starland Vocal Band's 1976 Grammy-winning hit, Afternoon Delight

The hills are alive! The NBC sketch show's opening gag involved the happy and very welcome return of yet another SNL alum - Kristen Wiig

Copping a feel: The Oscar-nominated 40-year-old portrayed one of Captain Von Trapp's children in a satire of Carrie Underwood's Sound of Music Live special on NBC

Baby arms: During their Edelweiss duet, Von Trapp (Taran Killum) and Maria (Kate McKinnon) were rudely interrupted by Dooneese's grabby little hands

Fart joke: When the captain misplaces his trusty whistle, Kristen's awkward character announces she'd put it up her dress before emitting sounds

Wiig then joined fellow alum Fred Armisen (as Lawrence Welk) to announce: 'Live from New York it's Saturday night!'

Mimicking Harry's hair: Paul appeared to have a blast mixing in with the well-groomed X Factor UK finalists

Boybanders: One Direction performed two songs live on SNL - Story of My Life and Through the Dark

Growing up: Both tracks are directly off their 'slightly rockier' third studio album Midnight Memories, which dropped last month

Syncopated: The Best Song Ever hitmakers wore matching black, white, and oxblood ensembles for the late-night programme

Forgettable: There was a bit about a divorcing couple who still couldn't stop dancing to 'their song' - Fleetwood Mac's I Don't Want to Know

'You can crack a tooth on this bumper!' Paul played a skinny Santa Claus debuting his 150-pound weight loss to his elves

No sign of Mrs. Claus: Father Christmas was then joined by McKinnon as bartender Candice, 'his new ho-ho-ho'

Yikes: There was an uncomfortable 'White Christmas' trailer parodying African-American holiday comedies which involved Paul as gun-toting Madea

'You can crack a tooth on this bumper,' Rudd said while stroking his derriere.

Father Christmas was then joined by McKinnon as bartender Candice, 'his new ho-ho-ho.'

There was an uncomfortable 'White Christmas' trailer parodying African-American holiday comedies which involved Paul as gun-toting Madea.

Weekend Update featured guest correspondents 'Bar Mitzvah Boy' (Vanessa Bayer) and colonial critic Jebediah Atkinson (Killum).

Explaining Chanukah: Weekend Update featured guest correspondents 'Bar Mitzvah Boy' (Vanessa Bayer) and colonial critic Jebediah Atkinson (Killum)

Relationship ghosts: In another bit, Cecily Strong was wistfully 'haunted' by her past lovers, including a forgettable Papa John's employee called Victor (Rudd)

Boozy buds: Paul reconnected with his Anchormen co-stars for a one-note bar sketch about red-cheeked drunks with fake teeth saluting their pal Bill Brasky

In another bit, Cecily Strong was wistfully 'haunted' by her past lovers, including a forgettable Papa John's employee called Victor (Rudd).

Paul reconnected with his Anchormen co-stars for a one-note bar sketch about red-cheeked drunks with fake teeth saluting their pal Bill Brasky.

When the episode ended, Kristen and Will were lovingly embracing each other alongside One Direction.

Old friends: When the episode ended, Kristen and Will were lovingly embracing each other alongside One Direction

30 Rock: The Bridesmaids actress and the Blades of Glory actor seemed to especially enjoy reconnecting on their old stomping grounds

The Bridesmaids actress and the Blades of Glory actor seemed to especially enjoy reconnecting on their old stomping grounds.

One Direction will kick off their Where We Are Tour on August 4 at New Jersey's MetLife Stadium in East Rutherford.

Rudd and his man-band will appear in Anchorman 2: The Legend Continues - coming out December 20 - with cameos from Kanye West, Harrison Ford, Sacha Baron Cohen, and Tina Fey.

New album: One Direction will kick off their Where We Are Tour on August 4 at New Jersey's MetLife Stadium in East Rutherford

Coming out December 20! Rudd and his man-band will appear in Anchorman 2: The Legend Continues with cameos from Kanye West, Harrison Ford, Sacha Baron Cohen, and Tina Fey