Why did Evan Lysacek skate his short program at the exhibition skate at Nationals?

Question

This was televised on Saturday, and I didn't hear the whole explanation as to why he changed his skate.

Answer 1

Because his original music, Ave Maria, was just skated to by Johnny Weir, and they've been labled as rivals. He told somebody that he needed new music so I guess he just did his program.