Jimmy Fallon reunites with Horatio Sanz, Chris Kattan and Tracy Morgan to perform their SNL holiday classic "I Wish It Was Christmas Today," with special guest Ariana Grande.
Emma Hunton (Spring Awakening, Next to Normal), and Ariana Grande perform an acoustic mashup of Britney Spears songs at "Emma Hunton Live at (le) Poisson Rouge" on October 11, 2010.
