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Saturday Night Live alum Bill Hader (2005-13) could not control his giggles as he triumphantly returned 'back home' to host the late-night NBC sketch show.
The 39-year-old Emmy-winning producer was helped out with surprise appearances by fellow returning SNL greats Fred Armisen and John Mulaney - as well as actor John Goodman returning with his impression of newly-fired Rex Tillerson.
Episodes - Seasons - Oklahoma-born - Funnyman - Laughter
But despite bragging about how he has appeared on 210 episodes over eight seasons, the Oklahoma-born funnyman repeatedly broke down into uncontrollable laughter as he hosted.
Bill was met with loud screams as he reprised many of his most famous characters from his time on the show - with him losing it with laughter as he brought back flamboyant New York City correspondent Stefon on Weekend Update.
Tourists - Tips - St - Patrick - Day
Asked to give tourists tips on how to celebrate St Patrick's Day, Hader hilariously broke character discussing clubs called Goosh, Off to Church Mother, and Stand Clear of the Closing Doors Please.
Ed Hardy-clad Stefon later consulted with his kinky 'attorney and conceptual p*** artist' Shai played by former SNL writer John Mulaney, who originally co-created Hader's character.
Power - Rangers - Star - Time - Horace
But the Power Rangers star had an even tougher time keeping it together as Horace, an elderly man in a wheelchair called whose wife Jeannie straddled him to have sex in front of her friends at a girls' game night.
The other women were already annoyed when Jeannie (Cecily Strong) brought along her husband, with Bill in a bald cap with gray hair on the sides.
Sex - Children - Advantage - Dose - Dysfunction
But they then insisted they had to have sex as they were desperate to have children and had to take advantage of his dose of erectile dysfunction medicine Cialis kicking in.
'We have to, you guys know how bad I want to have a baby,' she told her friends, with a small 'courtesy blanket' covering her...
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