Simplify the following text for a Grade 8 native English-speaking person.
Original: The next day , Pinder and Thomas recounted the story to McCartney , whoâ '' guitar in handâ '' strummed and sang `` She came in through the bathroom window ... '' .
Simplified: The next day , Pinder and Thomas told the story to McCartney , whoâ '' guitar in handâ '' strummed and sang `` She came in through the bathroom window ... '' .