Ol' Blue Eyes would be touched by so many of the loving tributes at CBS's Sinatra 100: An All-Star Grammy Concert on Sunday -- but perhaps none so much as Lady Gaga's.
The six-time Grammy winner sang one of Frank Sinatra's signature songs, "New York, New York," dressed in a classy tuxedo and fedora. No doubt Frank himself would have approved. She even busted out a few familiar-looking poses, emulating the music legend throughout her performance.
The concert, which also featured stars such as Harry Connick Jr., Seth McFarlane and Usher, honored what would have been Sinatra's 100th birthday.