And a sneak-peek trailer of the show suggests it could be a hit.
The series follows Rochelle Wiseman, Mollie King, Frankie Sandford, Vanessa White and Una as they try to make it in La-La Land.
Mollie (25) cheers "let's enjoy it -- we're in America" before her bandmates are seen sipping cocktails and dancing on stage.
The girls had a jam-packed schedule while they were in Hollywood; surfing, singing and shopping. The promo video shows that The Saturdays were busy chasing both fun and success.
The video even contains a cheeky Skype conversation between Rochelle (23) and her new husband Marvin Hume.
The two are chatting on line when the JLS star admits that he is wearing nothing but a smile. "Are you naked?" Rochelle asks, and gasps dramatically when Marvin admits that he is.
Earlier this year Tipperary native Una said the time was right to try the US.
"We feel that the time is now," she said. "One Direction and The Wanted came over and popped."
And bandmate Rochelle agreed.
"At home, we've sort of done what we can do for now," Rochelle says. "We've had 13 singles, four albums, three tours. We didn't want to leave home until we felt like we sort of put our mark on the UK."
But it wasn't all fun and games when they were living it up in LA.
Una suffered home sickness and said she was missing her husband Ben Foden.
"I am so over being apart from my husband," she wrote on Twitter, "that it is starting to consume me, literally."