"But what a sick party, pa-pa-pa." ?By early summer, the chorus of "6 AM," the sultry reggaeton hit by Colombian artist J Balvin, 29, featuring Puerto Rican pal Farruko, 23, had become a mantra for… ...

With a Hot 100 chart-topping hit and a Latin Grammy win, J Balvin was already having himself a stellar year. Yet with only a couple of weeks remaining, the Colombian superstar managed to add yet ...