Tiffany Alvord performed with which American contemporary artist in 2012?
Tiffany Alvord:  In December 2012, Alvord performed in Times Square on the Nivea stage with Carly Rae Jepsen, Train, PSY and Taylor Swift as part of the 2012 New Year's Eve celebration. Taylor Swift: Taylor Alison Swift (born December 13, 1989) is an American singer-songwriter.
Taylor Alison Swift