Nicole Kidman arrives at the 79th Annual Academy Awards in Hollywood, California February 25, 2007.

Let's get one thing perfectly¹ straight: If you want one of the hottest looks this season you have to get perfectly straight. Hair, that is.

Among the celebrities² who've sported it recently on red carpets and elsewhere are Reese Witherspoon, Nicole Kidman, Beyonce, Gwyneth Paltrow, Queen Latifah and Jada Pinkett-Smith.

It's a trend that clearly has legs into summer and even fall. Major design houses are on board with print campaigns featuring straight hair, including advertisements for Valentino, Fendi, Herm¨¨s, Burberry, Prada, Versace, DKNY, Calvin Klein, Chanel and Gucci.

"It's a recycle, but it's definitely happening," celebrity³ hairstylist Oscar Blandi said. "Straight is coming back strongly. It's straight, but it's a different straight."

How?

It has body. Unlike the trend about six or seven years ago for stick-straight hair, this season's straight has body, movement and shine.

"The key thing is that the hair is phenomenally shiny. It is very glossy⁴, shiny hair," Redken stylist Kaz Amor said. "If you look at Gwyneth (at the Oscars), the hair was moving. It was not stiff, straight-down hair."

Blandi said the previous straight-hair trend dictated⁵ almost no movement.

"It's not spaghetti. Before, the hair was almost attached to the skull," he said. "Now, it's got a silky texture⁶. It's not flat. There's much more body. "

Today's straight styles are parted on the side and pulled away from the face, said Tim Rogers, stylist and spokesman for Charles Worthington hair products and salons⁷.