Lady Gaga allegedly left "large amounts of blood" in a hotel bath.
The eccentric singer reportedly shocked staff when she checked out of London's lavish Intercontinental Hotel last summer and they discovered a pool of red liquid in the tub of her suite.
One housekeeper claimed the pop superstar was "bathing in blood as part of a Satanic ritual".
She told website Truthquake: "Lady Gaga left large amounts of blood in the suite during a stay this summer. The incident was reported to the concierge, who was told to put it out of her mind."
Other sources believe Gaga could have been using the red liquid as part of a "weird" stage costume or prop.