Can you guess which A-lister was spotted without make-up?

Sofia Vergara's natural look

Left: A bare-faced Sofia on her way to get her hair and make-up done. Right: Sofia emerges looking polished and glam on the set of "New Year's Eve." [Pacific Coast News]

The actress is almost unrecognizable without her signature red carpet hair and makeup.

Behold the power of make-up! We spotted Sofia, a natural blonde (really!), on set in New York filming "New Year's Eve," looking almost unrecognizable.  Without her signature voluminous locks, sunkissed skin and vampy make-up, we had to do a triple-take! Her long locks were uncharacteristically dull and flat, and her skin appeared to be WAY fairer than usual.  And her on-set look (a cutesy ponytail and flirty make-up) is different for her. The verdict? Miss Vergara's beauty knows no boundaries."New Year's Eve" is the hotly-anticipated sequel to Garry Marshall's "Valentine's Day" and also stars Katherine Heigl, Sarah Jessica Parker, Jessica Biel, Ashton Kutcher, and Robert De Niro, among others. With this all-star cast, it's sure to be a hit---but Sofia's the one we can't wait to catch.  If her acting chops are anything like that on "Modern Family," we're all in for quite the treat!

Read More: Yahoo