For the first time in history, both the No. 1 song and album in the U.S. are from animated films.
Pharrell's single "Happy," from "Despicable Me 2," reached the top of the Billboard Hot 100 chart this week, while Disney's "Frozen" soundtrack album spends a fifth nonconsecutive week at No. 1 on the Billboard 200 chart.
"Happy" is only the second No. 1 Hot 100 hit from an animated film. It follows "Aladdin's" "A Whole New World (Aladdin's Theme)" by Peabo Bryson and Regina Belle in 1993. (Honorable mention goes to the Archies' "Sugar Sugar," a No. 1 hit in 1969 tied to the CBS TV animated series.)
As for "Frozen," it is only the fourth animated film soundtrack to reach No. 1 on the Billboard 200. Previously, we've had No. 1s from "Curious George" (in 2006), "The Lion King" (1994) and "Pocahontas" (1995).
Billboard began publishing a weekly pop albums chart on a consistent basis in 1956. Before that, we produced album charts irregularly from 1945 to 1954. During that time, the storybook albums to the Disney animated films "Cinderella" and "Alice in Wonderland" both reached the top 10 (peaking at Nos. 1 and 8, respectively). As they mostly consist of dialogue and story narration -- though both include some music -- they aren't traditional soundtracks, but some could consider them as such.
(Thanks to Billboard reader Jeff Thomas for inspiring this story, via Twitter.)