Ariel Rechtshaid is an American record producer, audio engineer, mixing engineer, multi-instrumentalist, and songwriter. His production, songwriting, and mixing credits include Brandon Flowers, HAIM, Vampire Weekend, Madonna, Tobias Jesso Jr., Usher, Adele, Cass McCombs, Solange Knowles, Murs, Sky Ferreira, We Are Scientists, Kylie Minogue, Glasser, Alex Clare, and Major Lazer.