2 Chainz latest song, Rule the World, features Ariana Grande. Did you the song is actually a sample of the 2002 song, “Why Don’t We Fall in Love” sung by Amerie? Ariana is currently on tour and 2 Chainz had a performance on Ellen so who better to get to sing Ariana’s part than Amerie herself! The two performed the song with Wanda Sykes filling in for Ellen. Whose version do you like better, 2 Chainz with Amerie or Ariana Grande?