Celebrities have access to the very best hair colorists and beauty advisers, so they provide great inspiration for your next hair color change. However, sometimes there's no one in a star's beauty inner circle to tell her "no" when she has a hare-brained hair color idea.

Julianne Moore sets the bar when it comes to Hollywood redheads. Her rich deep copper shade offsets her skin and eyes perfectly, and shiny healthy hair is always fashionable.

Jessica Simpson is a true adventurer when it comes to hair, and sometimes that leads her to places she just shouldn't go. While this weak red shade was only temporary, she still shouldn't have been let out of the house looking like that.

Scarlett Johansson has had many different hair colors and styles. But this rich auburn does wonders for her peaches and cream skin tone. The straight style showcases healthy, shiny tresses.

What can we say? There's just no need to ever go anywhere except Mardi Gras looking like a tie-dyed fern on steroids. Even musical artists need limits when it comes to outrageous hair creations.