"ASAP Forever" is a song by American rapper ASAP Rocky, released on April 5, 2018 as the lead single for his third studio album Testing (2018). The song contains a sample of "Porcelain" by American musician Moby, who is credited as a featured artist. The song also features background vocals by singer Khloe Anna and production from Hector Delgado, Rocky, and Jordie X.

"Porcelain" is a song by American electronic musician Moby. It was released on April 25, 2000, as the sixth single from his fifth studio album Play (1999). Written by Moby, who also performs vocals on the recording, "Porcelain" is a melancholic song with lyrics reflecting on the breakup of a relationship. It features a lush musical backing that incorporates reversed strings and various synthesized elements. While Moby initially expressed disdain over the song and its production, he was eventually talked into including it on Play.