Full show Ariana Grande performance New Years Eve with Ryan Seacrest 2014 Ariana Grande performance New Years Eve with Ryan Seacrest 2014 Ariana Grande performance New Years Eve with Ryan Seacrest 2014 Ariana Grande performance New Years Eve with Ryan Seacrest 2014 Ariana Grande performance New Years Eve with Ryan Seacrest 2014 Ariana Grande performance New Years Eve with Ryan Seacrest 2014 Ariana Grande performance New Years Eve with Ryan Seacrest 2014