The streaming service announced it would no longer promote artists it finds to be out of line with its values.
The 22-year-old rapper’s second album, “Beerbongs & Bentleys,” hit No. 1 with 431 million plays on digital-music services.
The honor, for the album “DAMN.,” makes the rapper the first nonclassical or jazz musician to receive the honor since the awards expanded to music in 1943.
Mr. Walk, who has worked with Ariana Grande and Lorde, represents perhaps the most high-profile music industry employee to lose his job amid the #MeToo movement.
The breakout FX comedy, created by Donald Glover, returns with a grittier new season.
The pop singer has performed more than 150 shows in the last 16 months.