Jennifer Lopez talks Casper - and her controversial performance
Returning "American Idol" judge Jennifer Lopez views each mistake as a lesson.
The 44-year-old actress and singer was caught in a performance faux pas in June when she sang "Happy Birthday" to one of the most repressive leaders in the world, Turkmenistan President Gurbanguly Berdymukhamedov.
J. Lo sings happy birthday wishes to repressive Asian leader
