According to TMZ, 70s hip hop trio The Sequence are suing the pair as they say the track is too similar to their 1979 song ‘Funk You Up’.
The site reports that court documents show that the trio claim that Mars and Ronsons’s track has ‘significant and substantially similar compositional elements’ to theirs.
They’re asking for a jury trial and an unspecified sum of money.
This isn’t the first time ‘Uptown Funk’ – which won two Grammy awards, including Record of the Year in 2016 – has been the centre of lawsuits.
Back in September, Lastrada Entertainment, who own the rights to Roger and Zapp’s 1980 song ‘More Bounce To The Ounce’ filed a lawsuit against Ronson, claiming he copied the track.
In 2016, Ronson and Mars were sued for copyright infringement by Minneapolis band Collage, who claimed the track was “an obvious, strikingly and/or substantially similar copy” of their 1983 single ‘Young Girls.’
Two more acts have previously claimed that ‘Uptown Funk’ copied their own work. Three members of The Gap Band were added as songwriters to the track as part of a settlement that recognised the influence of their song ‘Oops! Upside Your Head’.
Serbian singer Viktorija also claimed that the hit single copied her song ‘Ulice Mracne Nisu Za Devojke’.
Meanwhile, back in June, Josh Homme revealed that ‘Uptown Funk’ was the reason he worked with Mark Ronson on the latest Queens of the Stone Age album ‘Villains‘, which came out in August.
“I think one of the reasons was to act like a talisman as a reminder of listening to ‘Uptown Funk’. It’s very tight and vacuous. It sounds fucking great,” Homme said.
“I knew I wanted to make something that sounded very tight, and with the air sucked out of it and very clear.”
Bruno Mars has been confirmed to headline British Summer Time 2018. More info here.