Lauren Conrad showed off a futuristic retro ponytail at a book signing for her latest novel, “The Fame Game,” at The Grove in LA on Tuesday night. A high ponytail with sexy Bombshell curls, dipped in hot pink dye. The fashion mogul looked super sultry with her multicolored bouncy ponytail, sharp eyeliner and a button down white blouse with metal spikes on the collar. We’re kind of obsessed!

Do you want to try Lauren Conrad’s dip-dye hot pink look on your own hair?

If dying your hair seems like too serious a commitment, try some multi-colored hair extensions. Sultra’s Solid Color & Cheetah Print Extensions (Sephora, $22) come in Ultra Pink, Cameo Pink, Cyprus Lilac, Ocean Teal and Rich Sable, all with a funky cheetah print. There are like 14 different colors! Mix and match. Go nuts!