What is the guess who laughing?

"The Guess Who Laughing" is a song by the Canadian rock band The Guess Who. It was released in 1969 as a single from their album "Canned Wheat." The song features catchy guitar riffs and driving rhythms, characteristic of the band's blues-influenced rock sound. "Laughing" became a hit for The Guess Who, reaching the top 10 on the Billboard Hot 100 chart in the United States. The song's lyrics tell the story of a man who is heartbroken and left alone, questioning why his lover left him. "Laughing" remains one of The Guess Who's most popular and enduring songs.