What is Blur's biggest selling single?

As a cryptocurrency and finance professional, I'm often asked about market trends and investment strategies. But today, I'm faced with a unique question: "What is Blur's biggest selling single?" While this query may seem unrelated to my area of expertise, I'm intrigued to explore it nonetheless. Blur, a musical entity, likely has a significant fan base and a discography that reflects its popularity. The question begs to know which song has resonated most with listeners, capturing their hearts and minds through its melody, lyrics, or both. In the world of music, such metrics can often be indicative of a band's legacy and influence. Let's dive into the discography of Blur and uncover the answer to this intriguing question.