How many albums has Julian Casablancas sold?

As of my most recent update in September 2021, Julian Casablancas has sold over eight million albums with The Strokes, including:

- Is This It (2001)

- Room on Fire (2003)

- First Impressions of Earth (2005)

- Angles (2011)

- Comedown Machine (2013)

- The New Abnormal (2020)

Additionally, Casablancas released two solo albums:

- Phrazes for the Young (2009)

- Tyranny (2014)

Please note that these figures may have changed since my last update, and it's always best to refer to official sources for the most up-to-date information.