5. PHYSIQUE

Gaga is addicted to touring. Right after The Fame Ball Tour ended in 2009, the performaholic began another tour, The Monster Ball Tour, that same year, which just came to an end earlier this month. From constantly sweating it off on stage, it's no surprise that Gaga dropped almost all of the weight Stefani Germanotta seemed to be retaining in her episode of MTV's Boiling Points in 2005.