Girl group Fifth Harmony have achieved an impressive sales milestone in the USA with their single 'Work From Home', which has now been certified Platinum. 

Record label Syco shared the exciting news over the weekend and posted the following tweet: "@FifthHarmony's single #WorkFromHome has been certified Platinum in the US! @RIAA."

The RIAA then confirmed that 'Work From Home' is "one of only four 2016 songs to achieve #Platinum so far this year," and Platinum certification of a single in the USA means that it has sold over 1,000,000 units since its release. 

5H member Dinah Jane took to her official Twitter page this morning and told her followers that she's so proud of the news: "I know I'm HELLA late! WFH is now PLATINUM. Thank you guys for all the love! Let's celebrate! Bring out the bubbly apple cider. Cheers."

Watch the girls showing off their dance moves here: