Leadership of the singles chart changes hands for the fifth week in a row - the first such sequence since 2015 - with Puerto Rican pairing Luis Fonsi & Daddy Yankee's Despacito (feat. Justin Bieber) jumping 4-1 (71,925 sales, including 41,310 from streams) ending the brief reign of DJ Khaled's I'm The One (feat. Justin Bieber, Quavo, Chance The Rapper & Lil Wayne) despite the latter increasing sales 10.50% to 62,240 as it falls 1-2.

Despacito made slow initial progress ...