OMG, This Is What Pop Stars Looked Like In 2007 vs. 2017

Katy Perry 2007:

Katy Perry 2017:

Justin Bieber 2007:

Justin Bieber 2017:

Mariah Carey 2007:

Mariah Carey 2017:

Gwen Stefani 2007:

Gwen Stefani 2017:

Kelly Clarkson 2007:

Kelly Clarkson 2017: