Faith Hill was rocking a very unexpected accessory at the Grammy Awards at the Staples Center in L.A. Sunday, Feb. 10: Braces! Clad in a black J. Mendel gown (plus Lorraine Schwartz jewelry, Tom Ford shoes and a Bottega Veneta clutch) and standing beside husband Tim McGraw, the 45-year-old country singer sported clear orthodontic gear on her famous smile