30. "Lemon" (with N.E.R.D.) (2018)
N.E.R.D.'s first single in seven years is politically charged, quoting Gloria Steinem and railing against hate over sparse, bass-heavy grooves. The group's return, especially as a follow-up to Pharrell's string of 2010s hits, would have been a big enough story on its own, but the real surprise was the swaggering verse by a most unexpected guest MC: Rihanna, who laid down a boasting verse packed with sly references to various hip-hop legends in a laconic flow. (The track was originally supposed to go to Sean "Diddy" Combs, but N.E.R.D. decided to keep it for themselves.) Thirteen years after her chart debut, the song became Rihanna's 50th Top 40 hit.