Nicole Richie Chops Off Her Long Hair: PHOTOS

nicole richie undergoes a snipping

Nicole Richie tweeted the haircut teaser hint 'B.O.B.' flanked by scissor images along with an Instagram photo as her stylist is transforming her long tresses into a shorter 'do.

We've included a comparison photo taken last week at the Golden Globe Awards, where the NBC 'Fashion Star' mentor was rocking a periwinkle Naeem Khan gown.

Her husband Joel Madden, of pop punk band Good Charlotte, loves to change things up on a regular basis with hair hues that run the color spectrum - check out his rainbow shades.

The couple began their relationship in 2006 and wed two years ago.  They have two children, daughter Harlow, 4, and son Sparrow, 3.  Fun Fact: they sold first photos of Harlow to PEOPLE for $1 million.

Photos:  WENN, Twitter-Instagram-Nicole Richie