In the midst of promotion, Haak, Hinkelmann and Rennalls were accused of not using their own voices in any of Mr. President's songs. Hamburg's leading and well-known magazine Stern reported the whole scandal that was first revealed on German Radio station Bremen 4. According to their report, the actual voices belonged to Caren Miller, Anne Schroeder, and William King III. However, Matthiesen and Neumann appeared in a televised interview on German channel VIVA and explained that the voices were indeed Daniela and Judith's, but that their pitches were technically edited during recording.