Susan Boyle returned home to an unexpected houseguest Tuesday night, BBC reports. The intruder made a run for it when Boyle arrived at her Blackburn home, and still hasn't been identified by police.

"The owner was very distressed to find someone had been within her home and we are keen to speak to anyone who can assist with our investigations," police said.

But Boyle appeared happy on Wednesday, smiling and giving her signature thumbs-up to fans outside her home. "I'm fine," she said. "It's in the hands of the police now.