By Chesney Hearst, Senior Contributing Reporter
RIO DE JANEIRO, BRAZIL - American pop singer-songwriter and dancer Justin Timberlake brought the first three days of the 2013 Rock in Rio edition to a close as he headlined the festival's main stage in Barra da Tijuca’s Cidade do Rock (City of Rock) on Sunday, September 15th.
Timberlake, who performed with his former group, boy band 'N Sync in the 2001 edition of Rock in Rio, stuck mostly to his . . .