Switching languages has paid off for Demi Lovato…

The 25-year-old part-Mexican American singer has earned her first chart-topper on Billboard’s Latin Airplay chart as her collaboration with Luis Fonsi, “Echame la Culpa,” song rises 4-1 in its seventh week frame (dated January 20).

The song earned 15.3 million in audience impressions (up 15 percent) in the week ending January 14 according to Nielsen Music.

It’s Fonsi’s eighth No. 1 on the chart.

“Echame la Culpa” also rises 2-1 on the Latin Pop Airplay chart, rising 17 percent in plays in the format.

On the Hot Latin Songs chart — which blends airplay, sales and streams — “Echame La Culpa” holds at No. 4 for a third consecutive week, earning the week’s Digital and Airplay Greatest Gainer honors. The track increases in all metrics: up 8 percent in streams to 8.7 million in the week ending Jan. 11, 4 percent in downloads to 6,000 downloads sold, and 13 percent in all-format audience impressions to 17.1 million in the week ending January 14.

Meanwhile, Fonsi’s “Despacito,” with Daddy Yankee and featuring Justin Bieber, nets a 38th week at No. 1.