"SPEECHLESS. WOWOWOW!!!!!!!," the 35-year-old singer wrote, also thanking the Academy and giving a congratulatory shout-out to his fellow nominees.
"Can't Stop the Feeling!" is the 41st song to reach No. 1 on the Billboard Hot 100 and also be nominated for an Oscar. The song joins a list of iconic soundtrack tunes including Celine Dion's "My Heart Will Go On" from 1997's Titanic and Stevie Wonder's "I Just Called to Say I Love You" from 1984's The Woman in Red.
Along with Timberlake's Trolls track, Lin-Manuel Miranda's inspirational song "How Far I'll Go" from Disney's Moana also received a best original song nomination, as well as La La Land's Justin Hurwitz, Benj Pasek and Justin Paul, who earned two nominations for "City of Stars" and "Audition." And when it came to their reactions, they were all apparently as speechless as Timberlake.
"While we might be the lyricists for La La Land, we’re having some real trouble finding words this morning! We had the great honor of writing these songs with the singularly talented Justin Hurwitz, and it was such a privilege to develop them with the visionary Damien Chazelle," Pasek and Paul told Billboard in a statement. "We couldn’t be more thrilled for the academy to recognize that this film was a collaboration across all departments. And that’s about the maximum amount of English sentences we’re able to string together at this moment!"
The final nominee is "The Empty Chair," from Jim: The James Foley Story, music and lyrics by J. Ralph and Sting.
The winner of the best original song Oscar will be determined when the Oscars air on Sunday, Feb. 26, at 7 p.m. ET on ABC.