Gwen's new era will bomb. Her whole appeal came from being visually/sonically different to other popular artists of the time, she wouldn't really stick out these days that much. The Fame/One Of The Boys pretty much killed Gwen's solo career.
Fergie will bomb too because everything about her is tacky/dated/desperate.
Nelly is the only one who could have a hit song that wouldn't sound out of place on the charts. It's unfortunate TSI's material simply wasn't strong enough. She needs a feature on a rapper's single or something
