Miley Cyrus fans have been left in a state of shocked disbelief by the revelation that the Disney star is obliged, like mere mortals, to obey the the fundamental laws of physics.

The proof came during the 15-year-old's "Best of Both Worlds" tour, in which a swift costume change to transform the popstress from her alter ego Hannah Montana to the merely mortal Cyrus necessitated the use of a body double:

PMK, the company which represents Miley, explained: "To help speed the transition from Hannah to Miley, there is a production element during the performance of We Got the Party incorporating a body double for Miley.

"After Hannah has completed the featured verse on the duet with the Jonas Brothers, a body double appears approximately one to two minutes prior to the end of the song in order to allow Miley to remove the Hannah wig and costume and transform into Miley for her solo set. Other than during this very brief transitional moment in the show, Miley performs live during the entirety of both the Hannah and Miley segments of the concert."

It all sounds resonable enough, although we prefer the analysis of Gary Bongiovanni, editor-in-chief of Pollstar, who clarified: "It takes a few moments at least to change costumes, and they are trying to do it to give you the almost 'David Copperfield gee-whiz' effect. There are absolutely laws of physics that prevent you from doing gee-whiz things without some hocus-pocus."

So now you know. ®

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