Cheryl was all smiles as she jetted into Dublin Airport on Sunday.
The former Girls Aloud singer was spotted strutting through the terminal wearing jeans, a white t-shirt and a leather jacket.
She teamed the casual look with sunglasses and pointed red boots.
The newly single mum was greeted by photographers and took the time to sign autographs for fans.
Mystery surrounds the visit of the former X Factor judge as it is not yet known why she is here or for how long.
Many people have taken to social media to ask the same question.
"Anyone know why Cheryl’s in Dublin?" one person asked on Twitter.
Another added: "I really wanna know why Cheryl is in Dublin."
A third speculated: "I don’t know why Cheryl is in Dublin but it better be music related."
Someone else said: "Someone please tell me why Cheryl is in Dublin."
Other comments included: "CHERYL IS IN DUBLIN...OMG WHAT @CherylOfficial WHY WHERE WHEN?", "Wait what why’s Cheryl in Dublin?" and "CHERYL WHY ARE YOU IN DUBLIN".
Irish presenter James Patrice also tweeted: "Why WHY is Cheryl in Dublin? Just as I depart her hometown - we're such kindred spirits.