Which Star is Behind this Plunging Neckline? [PHOTO]

One starlet has begun taking major fashion chances!  And this deep neckline is no exception!  So, who's feeling daring these days?

None other than Taylor Swift!  The 22-year old singer donned this daring silvery white ensemble Thursday for the 40 Principales Music Awards in Madrid, Spain, where she took home an international artist award.

And check out her Louboutins!  Taylor's really beginning to pepper in some edge to her America's Sweetheart image!