Rod maybe a rock star, but looks like he is still a boy at heart!

Rod Stewart builds model trains backstage when he's on tour. While some rock stars indulge in hedonistic pursuits such as drinking, drug-taking and casual sex when they come offstage, the Scottish singer requests a large table in his dressing room so he can indulge his hobby of building scale models of railways

via Rod Stewart Builds Model Trains During Tour.