However never one to stay in one style for long, the singer stepped out in a hybrid of mermaid meets office executive meets Mad Hatter in London on Wednesday.
After popping out for fish 'n' chips on Tuesday night in a bra, PVC and seashells in her hair, the 27-year-old wore another similar hairdo.
The Mad Hatter: Lady Gaga leaves her London hotel in a feathered hat and seashells in her hair on Wednesday evening
Ready for business: Gaga looked smart... ish, if you ignored her hair
She certainly looked ready for business in the grey skirt suit and cream heels, which she teamed with a black handbag Margaret Thatcher would have been proud of.
The New Yorker teamed her smart ensemble with a black feathered hat perched on the side of her head, with her long curly wig covered in seashells and starfishes.
Earlier that day, Gaga admitted she had been busy rehearsing for her upcoming iTunes Festival concert at the Roundhouse in Camden, North London.
Making an exit: The singer looked smart as she left her hotel for a evening out in the capital
Countdown is on: Lady Gaga is in London to perform at the iTunes Festival this weekend
She tweeted fans, aka her 'little monsters', giving them a dress code for the gig, which she has renamed Swinefest.
She wrote: 'I will be providing a list of acceptable attire for #SwineFest throughout the week. Item 1: Seashells. Item 2: Seahorses 3: Starfish.
'I would also suggestion 4. Paint colored dreadlocks for securing 'under the sea' Boticelli-Punk accessories. More fashion updates to come! X.'
Greeting her Little Monsters: Plenty of Gaga's fans were camped outside the hotel to greet her
To inspire her fans, she posted a short clip of Ariel from the Disney animation Little Mermaid looking distressed before swimming away.
She said: 'Rehearsing my routines! I really need to get my mic + cassette player duo back from my mom, that thing was the best. #neverfailedm.'
Getting her skate off: Lady Gaga signs a skateboard for one of her fans
Smile! Lady Gaga takes a self-portrait for one of her fans
On Tuesday night Gaga visited her favourite London chip shop, Seashell of Lisson Grove in Marylebone for a takeaway for her and her entourage.
She ordered haddock, chips and popcorn prawns - a dish exclusive to the popular restaurant's takeaway menu.
Lady Gaga plays the iTunes Festival on September 1. For more information about the festival, visit the iTunes website.
Not ready for her close-up: Gaga looks a bit stunned as a fan takes a selfie