The 46-year-old Irish singer appeared at the Bestival music festival on Britain's Isle of Wight with the initials B and Q tattooed on her face in pink ink.
O'Connor then addressed the tattoos Wednesday on her blog writing, "Brendan Quinlan.. 'It’s what it is' … Un ange passe ; ) There’s a bottle of Agent Provocateur in someone’s room that belongs to me."
Un ange passe is French for "a past angel," but it's still not known who Brendan Quinlan is to her.
As Radar previously reported, O'Connor surfaced in 2011 looking virtually unrecognizable and then began blogging about bizarre things like her sexual appetite for inanimate objects as well as begging for suicide options on Twitter.
What do you think of O'Connor's newest ink, and who do you think Brendan Quinlan is? Sound off below…