The 27-year-old - who has been hanging out in London for the best part of two months - left staff at Selfridges department store in London with their jaws on the floor as she stripped off in a changing room and then proceeded to run around the world-famous shopping hotspot in the buff.
"Lindsay took some items into the changing room," an insider told The Sun. "Halfway through, she ran out of the room with nothing on and was chased by members of staff who were trying to cover her up."
"She was laughing her head off and literally giving staff the run-around as customers looked on."
However, it seems she was later left red in the face and made a quick dash from the shop. The actress has been due to meet with a personal shopper later that day - but after her bizarre naked display was a no-show. #Awkies.
"Lindsay was booked in for a personal shopping experience with a posh brand at the shop later that day," the source added. "But it didn't happen." We can't blame her for that one.
According to reports the child star-turned-streaker is considering a permanent move to London and has been lined up for a role in West End show Speed-The-Plow which opens in November this year.
The actress fuelled rumours last week when she shared an Instagram snap of herself posing outside a theatre stage door alongside the caption: "At work! First day.. Read through."
Keep-up-to date with Li-Lo's odd antics below...