Ain't No Other Man received generally positive reviews from music critics, who praised the new musical style of Aguilera and some of them compared the singer's vocals on the song to Mariah Carey.
Ain't No Other Man received generally positive reviews from music critics, who praised the new musical style of Aguilera. Some of them deemed it as one of the standout tracks on "Back to Basics" and compared the singer's vocals on the song to Mariah Carey.