The ABCs of Dressing For Sesame Street

Not only was Kristen Bell's moment with Abby Cadabby sweet enough to make us "aww," but we couldn't help but swoon for her demure button-down.

Rather than distracting prints, Charlize Theron caught our eye with her red and black colorblock.

Can we all agree that there's nothing chicer for an afternoon on Sesame Street than Michelle Obama's ladylike sweater?

This is Sesame Street, after all! Janelle Monae took the occasion quite seriously in sleek suiting.

If you're not going to match any of the characters directly, why not stand out with a bold pop of color like Anna Kendrick's bright green dress?

OK, so Katy Perry may have gotten more attention for her cleavage-baring dress during her rendition of "Hot N Cold," but her playful headwear was spot on.

What better way to complement Elmo than with Lupita Nyong'o's Mondrian-inspired print? Best of all: note the perfectly coordinated scarlet square.

Since Sesame Street launched in the late '60s, Ginnifer Goodwin made reference to the era where it all began in her retro shirtdress.

Emma Stone stuck to her fashion-forward taste without veering too edgy for Abby and crew in an abstract, aubergine print.

If Paula Patton's bright look doesn't put a smile on your face, what will?

Should you be so lucky to snuggle up with someone as soft as Elmo, take a tip from Halle Berry, who opted for a cozy ensemble.