[Joining six-months-pregnant Tina Fey were fellow SNL alums Maya Rudolph (even more pregnant than Fey), and Darrell Hammond. Osama bin Laden featured heavily—issuing his last will & testament in the cold open and later appearing as a shrouded corpse in a Little Mermaid sketch. Musical guest Ellie Goulding performed "Lights" and a cover of Elton John's "Your Song."]

Some highlights...

Fox News hosts a 2012 GOP presidential candidates debate, featuring Tina Fey as Sarah Palin ("This week we finally vanquished one of the world's greatest villains. Let me be the first to say, Good riddance to Katie Couric...") and Darrell Hammond as a dead-on Donald Trump:

Digital Short—Michael Bolton steals the show from The Lonely Island. ("It turns out Michael Bolton is a major cinephile..."):

City correspondent Stefon (Bill Hader) drops by Weekend Update with some reliably weird tips for a special Mothers' Day. ("Kick back in your very own subway sleeping bag -- you know, it's that thing when you're on a train, and you sit between two guys in FUBU jackets..."):

Maya Rudolph and Kristin Wiig star in the world's creepiest home birthing video:

Hallmark introduces Mothers' Day cards for weirdos (with Paul Brittain as Norman Bates...):

Also: Abby Elliott and Jay Pharoah spoof Bravo's Pregnant in Heels.

NEXT WEEK: Ed Helms, with musical guest Paul Simon.