Kelly Clarkson has come a long way since American Idol, especially when it comes to her looks. This is one artist who is not afraid to change it up, even if it's just over the course of a few days.

Here is a look at Clarkson's ever-changing style.

Her new album, Stronger, will be released on Oct. 25. One of the songs, Mr. Know It All, peaked at #18 on Billboard's Hot 100 list.