Normally, Ashlee Simpson can only be held responsible for ruining a usually decent Saturday Night Live music set. But for Fox 411 gossipist Roger Friedman, Jessica’s younger sister represents something more catastrophic.

Simpson, famous for lip-synching on “Saturday Night Live,” is outselling multiple Grammy-winner and legend Stevie Wonder two-to-one, despite positive reviews for his new album, “A Time 2 Love.”

This is proof, I feel, that the Earth is about to experience some terrible event worse than the Indonesian tsunami, Hurricane Katrina or the Kashmir earthquake.

Oh god! An Ashlee and Jessica duet?!

Ashlee Simpson No. 1: Evidence of World Ending [Fox 411]