The girl group - consisting of Mollie King, Frankie Sandford, Rochelle Humes, Una Healy and Vanessa White - played their new track 'What About Us' while partying with fans at Hollywood's TigerHeat night at The Avalon.
"On our way for a dance at @TigerHeatLA... Are you ready for us?!" the group tweeted.
Shortly afterwards, a fan who claimed to have been at the nightclub added: "The Saturdays just premiered their new single called "what about us" at The Avalon in Hollywood... Amazing. #iwishiwasbritish."
The Saturdays are currently in Los Angeles filming a pilot episode for a potential new reality series for the E! television network.
The group previously described their new single as a "biggie", while band member Mollie King revealed that she had been taught a "Britney move" for the accompanying dance routine.
Watch the music video for The Saturdays' recent single '30 Days' below: