“Rio 2” flies into theaters this weekend, bringing Blu and Jewel, the movie’s beloved blue macaws, back to the big screen. Do you know which Oscar-nominated actress voices Jewel? Can you venture a guess? More famous voices are behind the characters in your favorite animated movies than you realize, from Disney's "Frozen" to "Aladdin." Click through to see some of the surprising and favorite celebrity voices in animated features through the years. We bet you’ll learn a thing or two. The Walt Disney Co. is the parent company of ABC News.