Kelly Clarkson
The Voice judge joins the tree lighting ceremony from Los Angeles with a performance of her original holiday tune, "Underneath the Tree."
Gwen Stefani
Gorgeous in gingham! The future Mrs. Blake Shelton puts a high fashion twist on holiday style in a Christian Siriano look.
Dan + Shay
Dan Smeyers and Shay Mooney of the country music duo bring some holiday cheer to NYC.
Tori Kelly
The singer-songwriter takes a walk on the wild side in a festive animal print number by Tom Ford.
Brett Eldredge
The country singer is dressed to the nines, face mask included, for the tree lighting spectacular.
Pentatonix
The a cappella pop group performs a song from their new album, We Need a Little Christmas.
Radio City Rockettes
5, 6, 7, 8! The world-famous dance company takes the stage.
Matthew Morrison
The star of NBC's upcoming The Grinch Musical performs "O Holy Night."
Aint Too Proud: The Life and Times of the Temptations
The cast of the Broadway musical puts on an electrifying show.
Goo Goo Dolls
The rock band covers Tom Petty's beloved holiday track "Christmas All Over Again."
David Ushery, Natalie Pasquarella & Mario Lopez
NBC News anchors David and Natalie join the Saved By the Bell alum.