Jimmy Fallon's duet with Sophia the robot is as sweet as it is unsettling

One of the most tender, or creepy duets ever performed on The Tonight Show features a robot.
Hampton Robotics' famous humanoid robot, Sophia, the first citizen robot in the world, joined Jimmy Fallon for a song on Wednesday night.
After introducing her robot sister, the forthcoming Little Sophia, Sophia used her AI voice to sing a rather lovely, if not undeniably unsettling rendition of A Great Big World and Christina Aguilera's "Say Something," with Fallon.
Sophia appears around the 4:30 mark,