Lucy shared her excitement with her Twitter followers on Sunday ahead of her long-haul flight, and we're not surprised, as she's about to make her mark Stateside.
Lucy is reportedly set to bag her first feature-length film and bring her successful fitness and health website, Results With Lucy, to America.
A source told Reveal: "Lucy is out in LA for meetings with a film producer she met in Cannes. He wants to cast her in his latest feature film, The Room.
"She also has meetings about bringing her Results With Lucy concept to America after the success of its UK launch.
"Lucy's Results With Lucy is the fastest growing fitness business in the UK. She's been inundated with American subscribers and is now in talks to bring RWL and a range of her own health products, to LA, where fitness is everything."
Despite having to take a flight to LA on her own, Lucy soon settled into her temporary accommodation at the Mondrian Los Angeles Hotel, which is situated at Sunset Boulevard in West Hollywood, after arriving on Monday (19 August).
Showing off her plush hotel room with white decor and a rather fancy television screen, she said: "Finally found the TV!!"
Making the most of her time, Lucy then hit The Grove - LA's ultimate entertainment destination - for a spot of food and shopping. The 22-year-old, who recently signed to a top modelling agency, beamed in a navy blue outfit as she cuddled up to a dog while in a taxi.
The jetlag soon kicked in for Lucy though, as she tweeted this morning: "Fumingggg!!! Fell asleep & missed a night out in LA!!!!! Well it's 1.45am here could I still go out!? Hmm!?"
Well, it sounds like the trip is both work and pleasure for Lucy - we reckon she's going to love the LA lifestyle!