Hasta Abajo (English: "Get Down") is a song from Don Omar's collaborative album Meet the Orphans released as promotional single from the album on November 17, 2009 through Machete, VI. The song was nominated at the Latin Grammy Awards of 2010 on the category for "Best Urban Song".

The song was produced by Eliel. A verse in the song references putting on and listening to music from Reggaeton singers El Cangri (Daddy Yankee), Wisin & Yandel, Randy, Ivy (Ivy Queen), Plan B and Tego Calderón among others. The song was originally planned to be included on the re-release edition of iDon, titled iDon 2.0 or Prototype 2.0 but later was cancelled. On November 30, 2009 an official remix with fellow-Reggaeton singer Daddy Yankee was recorded and confirmed via Don Omar's official Twitter-page. It was premiered on December 8, 2009.

Two music videos were made for the single, the video for the solo version was filmed on New York City on November, 2009. On December 2009 Don Omar stated through his official website that Daddy Yankee would appear on the second music video for the remix version, and that it would be directed by Carlos Pérez. The music videos for both versions were filmed on January 12, 2010, the Haiti earthquake day, according with Don Omar's Twitter. 2 teasers of the video were posted, the first on August 11, 2010 and the second on September 2, 2010. The music video for the version with Don Omar only, almost a year after the release of the song, was premiered on November 14, 2010. The video for the remixed version with Yankee, remains unreleased.

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