"Loyalty" (stylized as "LOYALTY.") is a song by American rapper Kendrick Lamar. It is the sixth song from his fourth studio album Damn, released on April 14, 2017. The song features Barbadian singer Rihanna on vocals and was written by Lamar, DJ Dahi, Sounwave, and Terrace Martin.

Complex calls it a "standout track" and one of Damn's most "radio-friendly cuts".The Fader writer Jason Parham calls "Loyalty", "anxious, berserk, and beautifully intransigent in [its] own right" and "equal parts pop, funk, and brooding rap hymnal". Frank Guan of Vulture enjoyed the song, especially Rihanna's part, saying "though only eight bars, Rihanna's sung rap is as fluent as it is brief, a swift and casual tour of her accomplishments."Rap-Up.com called the song a "standout track that allows Kung Fu Kenny and Bad Gal RiRi to address allegiance from a variety of angles."

The song samples "24K Magic" by American singer Bruno Mars. Additionally, it features interpolations of "Shimmy Shimmy Ya" by Ol' Dirty Bastard and "Get Your Mind Right Mami" by Jay Z.

Credits adapted from the official Damn digital booklet.

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