"Fall Down" is a song by American recording artist will.i.am featuring Miley Cyrus from his fourth studio album #willpower (2013). It was released on April 16, 2013 by Interscope Records as a promotional single from the record; it was later serviced to Australian radio stations later that year as the third single from the project. The song was written and produced by will.i.am, Dr. Luke, Benny Blanco, and Cirkut. "Fall Down" is an electropop and hip hop song; it strays from the electronic dance elements displayed in will.i.am's earlier singles "Scream & Shout" and "#thatPower", and instead leans towards an urban contemporary style.

"Fall Down" received generally negative reviews from music critics, who were disappointed with its overall production and drew comparisons to the work of American recording artist Kesha. It peaked at number 58 on the U.S. Billboard Hot 100, and charted in the lower ends of several record charts worldwide. However, the song reached numbers 14 and 15 on the Australian ARIA Charts and the Official New Zealand Music Chart, respectively, being certified gold in both countries. In the United States when it was planned to be a single, the track was promoted with live performances on Jimmy Kimmel Live! and Good Morning America, weeks later it was confirmed the single release was cancelled.

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