The TV audience for Sunday's MTV Video Music Awards dropped by a third to 6.5 million, compared to 9.8 million last year, the New York Times reports.
But Viacom, which owns MTV, has said the number of people streaming on Facebook had a tenfold increase.
In 2015 there were 4.4 million streams on the social network - this year it rose dramatically to 45.8 million.