"Por Favor" is a song by American rapper Pitbull and American girl group Fifth Harmony for the group's self-titled third studio album, and was released as its third single. The song was released on October 27, 2017, in two versions; a Spanish version, in which Lauren Jauregui and Ally Brooke are the main two contributors from the group heard on the song, and a Spanglish version, where all four members can be heard. The Spanglish version has been performed at the 2017 Latin American Music Awards and on the finale of Dancing with the Stars. The song contains a melody from the 2004 hit single "My Boo" by Usher and Alicia Keys.

"Por Favor" is a latin pop song. that has elements of hip hop, reggaeton and urban contemporary. It runs for three minutes and nineteen seconds. Lyrically, it discusses self empowerment and your love for someone. It has had a Spanish version and a Spanglish version that have the same lyrical meaning but in different languages.

Ross McNeilage from MTV said that the song is a "summer hit anthem during the winter time", similar to the time when the 2013 hit "Timber" was released. Mike Wass from Idolator said that "Mr. Worldwide shows his swagger" on the track and how "Fifth Harmony sing the killer vocal hooks and chorus on the track." Perri Konecky from PopSugar said that the track is a "banger", while calling it a "sexy song" and a "spanglish love letter", and that "it's a perfect jam for as to put on and dance to all weekend."

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