S is the second extended play (EP) by American recording artist SZA; it was self-released on October 28, 2013. After meeting members of independent label Top Dawg and releasing her debut EP See.SZA.Run (2013), SZA began working on S, beginning recording in May 2013. SZA worked with a variety of producers on the album, including Zodiac, Patrick Lukens, BrandUn DeShay, WNDRBRD, Waren Vaughn and Felix Snow. S is characterized as an alt-R&B album with production that "twists and mutates."