Little Mix photographed in 2015.

Little Mix photographed in 2015.

Mark Hunter

British electronica trio Years & Years have become the first artists to hit the top of the U.K. album chart in the new Friday-to-Thursday sales window, following last week’s launch of New Music Fridays. Their debut album Communion (Polydor/Universal) arrived at No. 1 in today’s new Official Charts Company data. Female pop troupe Little Mix entered the singles chart at the top with "Black Magic" (Syco Music/Sony).

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Communion includes the current Years & Years single "Shine" (at No. 2 for a second week in the new data) as well as their U.K. No. 1 from March this year, "King." The album sold more than the rest of the new top five combined, moving ahead of last week's bestseller, Ed Sheeran’s X (Asylum/Warner Music), to claim the crown. James Bay’s Chaos and the Calm (Republic/Universal) edged up 4-3.

The new album chart also showed a 14-7 rise for perennial seller The Very Best of Fleetwood Mac (WSM/Warner Music). The next highest new entry after Years & Years was for X Factor U.S.A. girl group Fifth Harmony’s Reflection (Syco/Sony), at No. 14. Bob Marley and the Wailers’ indestructible 1984 compilation Legend (Universal Island) jumped 54-16.

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Little Mix, who came together for the 2011 series of The X Factor, have gone on to consistent success since, although "Black Magic" represents a return to chart form. Their first two singles, "Cannonball" and "Wings," were both U.K. No. 1s, but this is their first since; their first album DNA reached No. 3 in 2012, and follow-up Wings No. 4 the following year. The OCC reports that the new single had combined chart sales of 113,000 for the week, including 1.19 million streams. Little Mix are set to perform at the first Billboard Hot 100 Music Festival in Jones Beach, N.Y., on the weekend of Aug. 22-23.

Lost Frequencies’ former No. 1 "Are You With Me" (All Around The World/Universal) climbed back 4-3, while "Show Me Love" (Polydor/Universal) by Dutch tropical house DJ Sam Feldt featuring Kimberley Anne debuted at No. 4.

Last week’s chart-topper, "House Every Weekend" (Positiva/EMI/ Universal) by English DJ David Zowie, fell to No. 5. Swedish DJ-artist Avicii landed his eighth U.K. top 10 single as "Waiting for Love" (Positiva/PRMD/Universal) arrived at No. 6.