"Good for You" is a song by American singer Selena Gomez from her second studio album, Revival (2015). It features vocals by American rapper ASAP Rocky; who co-wrote the track with Julia Michaels, Justin Tranter, Nolan Lambroza, and Nick Monson, being produced by the latter two. Originally, the track was conceived by the writers in 45 minutes, during a session booked by the latter. Gomez then received the song through the trio's A&R and was entirely involved in its creative session. Gomez wrote additional lyrics, helping to develop it as a representation of her process of self-realization, her confidence as a young woman, and her feelings of vulnerability. After it was reworked by Lambroza, she sent the song to Rocky, who added new instruments and co-produced it with his frequent collaborator Hector Delgado, who was in charge of Rocky's vocal production.

After anticipation by Gomez, "Good for You" was digitally released on June 22, 2015, through record labels Interscope and Polydor, serving as the album's lead single and as the first song by the singer to be released through those labels. A torch song, it is a pop and electro-R&B slow jam with hip hop elements that comprises a mellow, low-key snap-drop hip hop beat reminiscent of modern, pitched-down Southern hip hop productions, minor sound bursts, percussion instrumentation, drum machines, airy and transparent synthesizer, and a minimalistic bass. The artist sings atypically with breathy vocals and a plaintive timbre in the track, which was noted for being her first collaboration with a rapper. Its come-hither lyrics have intensity, psychodrama, self-confidence, and female empowerment as main themes, dealing with pleasing her lover and being the perfect complement for him. Rocky raps his verse at the end of the song, which is written from a male, player perspective and features braggadocio, profanity, and sexual innuendos.

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