From the New York listening party Rolling Stone said "'Million Dollar Bill' is a clattering, uptempo hip-hop-inspired number.
Nick Levine of Digital Spy said "Written by Alicia Keys and produced by Swizz Beatz (probably best known for Beyoncé's 'Check On It' and 'Ring the Alarm'), it's a midtempo disco track with an unabashedly feelgood message.