Some Band members, such as Paul McCartney, Sting, Phil Collins, and Justin Timberlake, have had great solo careers. However, others have failed to build a successful solo career. For this list, we are taking into account artists who were part of a successful music group. This could be a rock band, boy band, girl group, etc. They tried to go solo but failed to make waves on the charts. These artists must have released at least one studio album to be eligible for this list. Which band member do you think flopped the hardest as a solo artist?