Luis Fonsi and Daddy Yankee are ruling the roost on a big chart…

The 39-year-old Puerto Rican singer and 40-year-old Puerto Rican rapper’s hit single “Despacito,” featuring Justin Bieber, crowns the Billboard Hot 100 chart dated May 27, rising 3-1.

Among highlights for the new leader, it’s the first mostly Spanish-language Hot 100 No. 1 in more than 20 years.

Fonsi and Daddy Yankee each earn their first Hot 100 No. 1 with “Despacito,” released on Universal Music Latino / Raymond Braun / SchoolBoy / Def Jam / UMLE / Republic Records.

“Despacito” scores its first week at No. 1 on the Streaming Songs chart with 54.3 million U.S. streams, up 14 percent, in the week ending May 11, according to Nielsen Music. It also leads the Digital Song Sales chart, rebounding 2-1 for a second week on top, with 104,000 downloads sold, up 4 percent, in the week ending May 11; the remix with Bieber, released April 17, accounts for 73 percent of the song’s sales in the tracking week. On Radio Songs, “Despacito” darts 18-11 with 57 million in all-format airplay audience, up 17 percent, in the week ending May 14.

It’s Fonsi and Daddy Yankee’s first Digital Song Sales No. 1 and first Streaming Songs No. 1.

“Despacito” is the first Hot 100 No. 1 sung mostly in Spanish since Los Del Rio‘s “Macarena,” which, fueled by its Bayside Boys mix, dominated for 14 weeks in 1996. It also went on to become the biggest song of all of 1996 on that year’s year-end Hot 100.

“Despacito” tops the Hot Latin Songs chart for a 15th week. It’s Fonsi’s seventh and Daddy Yankee’s fifth. And, with 15 weeks on top, the track is tied for the 10th-longest No. 1 run in the chart’s 30-year history.