Artist sings don't want to say goodbye for the summer?

The artist you're referring to is likely Jonny Mathis, who released the song "Goodbye, Summer" where he expresses a longing for the season to last longer. This theme of not wanting to say goodbye to summer encapsulates feelings of nostalgia and the reluctance to let go of joyful moments. The sentiment resonates with many who cherish the warmth and freedom associated with the summer months.