Two women have been caught on camera twerking atop an SUV as it rolls down a Missouri highway.
The vehicle, a Chevrolet Suburban, was driving down Interstate 64 in St Louis when a passenger in another vehicle whipped out her phone to record the pair's posteriors for posterity, NBC affiliate KSDK reported.
She told the news station she uploaded it to social media, hoping someone would recognise them, but police said it would have been better if she called them instead.
"People are always looking for that attention to make them go viral," Missouri Highway Patrol spokesperson Dallas Thompson told KMOV-TV.
"They don't realise it takes just a minor breaking for them to fall off slam onto the pavement and get run over by another vehicle."
The women safely got back in the vehicle through its windows, without stopping.
Oddly, police said the twerkers weren't breaking the law - the driver is the one who could face charges.
"The driver could be facing careless and imprudent driving because they're failing to give the highest degree of care while they're operating the vehicle," said Mr Thompson.
If they'd fallen the charges could have included assault or manslaughter, he said.
Twerking was added to the Oxford Dictionary in 2013 after the dance was popularised by singer Miley Cyrus.
New Zealand's best-known exponent of the raunchy move is ACT Party leader David Seymour, who seared the nation's eyeballs with his interpretation in 2018's season of Three's Dancing With The Stars NZ.