Britney Spears Strips Down to Her Underwear -- and Teases New Music! -- in Sexy Perfume Ad

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A new era of Britney Spears is upon us -- and if this perfume teaser is to be believe, it's going to be sexier than ever! Feast your eyes on all this, "Slave 4 U" era!

Britney shows off plenty of skin in a strappy, bedazzled black number in the 16-second preview for her "Private Show" fragrance ad. Even better, it's our first taste of new music from the pop star, as it features a very, very brief snippet of a previously unheard tune.

"Stay tuned... #PrivateShow #TakeABow," Britney captioned the video.

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This is Britney's 20th perfume in just over a decade and it might be the most Britney fragrance yet, as it was apparently inspired by her "love of dulce de leche, white florals and iced coffee."

As for the "stay tuned" part, you won't have to wait long. ET will feature exclusive footage of the "Work B*tch" singer shooting the sexy spot on Tuesday. Then on Wednesday, we will be debuting the full commercial -- including an ear-full of that catchy track.

Until then, we'll be over here cooing "Ooo! Ooo! Baby! Baby!" on repeat.

The 34-year-old performer hasn't kept her banging body a secret lately, showing off her toned tummy and some very impressive yoga poses on Instagram. Check out the pics in the video below.