Waves latest hair trend for red carpet

Say goodbye to your straightening irons: the latest word on the red carpet is that waves are here to stay.

On Sunday night, stars attending the Grammy and BAFTA awards let down their hair, leaving their tendrils loose and lovely in an ode to spring's normcore hair. So what's the secret behind the wavy dos' success? The seemingly low-maintenance kink lets the gowns and accessories do the talking.

Hot on the heels of the widely adopted "wob" (wavy bob) trend, Rapunzel-like lengths continue to be a red-carpet worthy look. On Sunday night, Grammy-winning artist Beyoncé led the way, adding tousled extensions to her "wob."

The result was goddess hair -- not surprising for Queen Bey, but the look had a barely styled edge that was reminiscent of rock trio Haim's signature looks.

Danielle, Este and Alana Haim have never been afraid to wear their hair long and loose. Their glam-meets-grunge styles are perfectly in sync with the 70s revival for natural wavy hair. You would be forgiven for thinking that Haim look like they'd just stepped out of a shampoo ad, because hair stylist Candice Birns actually used Herbal Essences to create “effortless, natural, and sexy hair with a little bit of edge and rock ’n’ roll, she told Style.com.

“For all three, my last step was spraying the Herbal Essences Body Envy Dry Shampoo from root to tip to give it a piece-y, tousled, ‘I woke up like this’ vibe.”

Appearances can be deceptive, however, as even though Haim's Grammy hair looked anything but high-maintenance, Birns used a host of styling products to achieve the three similar yet different tousled styles. Bombshell Babe Blowout Smoothing Mousse was one of the hair professional's secret ingredients for perfecting Haim's wavy crowning glory and ensuring lasting body.

Other stars stepping out with wavy dos for their big red-carpet moments on Sunday included Madonna at the Grammy Awards and Julianne Moore, who scooped the BAFTA for best actress. Both women accessorized their awards-season wardrobes with sleek, smooth Hollywood waves. Their wavy looks, which appeared more groomed than most, managed to avoid going down the overly retro, often aging route.

Softer, easy-to-create finger waves were sported by Reese Witherspoon and Best Country Album Grammy winner Miranda Lambert.

Hats off to British actress Rosamund Pike and her less spectacular take on wavy red-carpet hair. At the BAFTAs, the former Bond girl used her 'bad hair day' "wob" to show off her stunning halterneck dress by Roland Mouret.