Jessie J has landed her third UK number one single, as a US singer became the first act to enter the top 40 based on streaming alone.
Bang Bang, Jessie J’s collaboration with Nicki Minaj and Ariana Grande, went straight into the top spot.
Meanwhile, American singer-songwriter Meghan Trainor became the first artist to reach the Top 40 on streams alone.
All About That Bass climbed 20 places to number 33 ahead of its official release.
Bang Bang was downloaded 92,000 times and was streamed more than 800,000 to give an overall tally of almost 100,000 chart sales, the Official Charts Company said.
The track – Jessie J’s first from her album Sweet Talker – knocked Sigma and Paloma Faith’s Changing off the top spot.
“I’m going to celebrate every minute of it, I might even go bowling,” said the singer.
All About The Bass racked up 1.17 million streams across audio streaming services including Spotify, Deezer and Napster.
It was announced in June that songs played on streaming services would count towards the UK’s singles chart after music streaming doubled in popularity in the UK between 2013 and 2014, from 100 million to 200 million streams a week.

Martin Talbot, chief executive of the Official Charts Company, said Meghan Trainor had “broken new ground” by entering the top 40 on streams alone.
Cilla Black just missed out on the top 40 after the re-release of her 1964 number one hit Anyone Who Had A Heart finished at number 47.
The song had re-entered the midweek chart at …read more
Source:: BBC Entertainment