Rihanna's straight and sleek hair extensions. Photo: INF

It's Rihanna vs. Lady Gaga: Who can debut the boldest hairstyle these days?

Rihanna was spotted in New York City today rocking her signature cherry red strands with dark sunglasses, a black wool and leather aviator jacket, and her infamous "F*ck You" necklace.

But now RiRi's locks are sleek, straight and half-way down her back.

Just last week we reported on the pop star's new sideswept fishtail braid, and before that, her "Snookie" pouf.

What's next for this 22-year-old fashion rebel? A red hair hat or red hair dress perhaps?

We don't know, but one thing's for sure -- her style certainly matches her new album, "Loud."

Click here for a roundup of the craziest celebrity redheads.

Like the look of a sleek blowout? Click through the gallery below for professional tricks and tips on how to nail smooth strands -- no matter what your hair type is.