PHOTOS: Katharine McPhee Loves Her Sheer Couture

Arriving at Radio City Music Hall in New York.

Arriving at the Primetime Creative Arts Emmy Awards at the Nokia Theatre L.A. Live in Los Angeles.

Walking the red carpet at a party hosted by Google and Netflix, at the U.S. Institute of Peace, as part of the White House Correspondents Association annual dinner weekend in Washington.

Promoting her new CBS drama "Scorpion" in Los Angeles.