Christmastime is here.

The 2017 Rockefeller Center Christmas tree, a 75-foot, 80-year-old Norway spruce from State College, Pennsylvania, was unveiled on Wednesday with a little help from celebrity performers Gwen Stefani, Brett Eldridge, Leslie Odom Jr., Pentatonix and more.

Kick off the start of the holiday season with photos from the ceremony.

Gwen Stefani

Gwen Stefani performs during the tree lighting ceremony
Gwen Stefani performs during the tree lighting ceremony on Wednesday, Nov. 29, 2017. (Credit: NBC / Peter Kramer)

Auli'i Cravalho

Auli'i Cravalho performs during the tree lighting ceremony
Auli'i Cravalho performs during the tree lighting ceremony on Wednesday, Nov. 29, 2017. (Credit: NBC)

The Tenors

The Tenors perform during the tree lighting ceremony
The Tenors perform during the tree lighting ceremony on Wednesday, Nov. 29, 2017. (Credit: Getty Images / Theo Wargo)

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Train

Patrick Monahan of Train performs during the tree
Patrick Monahan of Train performs during the tree lighting ceremony on Wednesday, Nov. 29, 2017. (Credit: Getty Images / Theo Wargo)

The Rockettes

The Rockettes perform during the 85th Rockefeller Center
The Rockettes perform during the 85th Rockefeller Center Christmas Tree Lighting Ceremony on Wednesday, Nov. 29, 2017. (Credit: Getty Images / Theo Wargo)

Mayor Bill de Blasio and 'Today' hosts

Hoda Kotb, Savannah Guthrie, Mayor Bill de Blasio
Hoda Kotb, Savannah Guthrie, Mayor Bill de Blasio and Al Roker push the tree-lighting button onstage during the ceremony on Wednesday, Nov. 29, 2017. (Credit: Getty Images / Theo Wargo)

Harry Connick Jr.

Harry Connick Jr. performs during the tree lighting
Harry Connick Jr. performs during the tree lighting ceremony on Wednesday, Nov. 29, 2017. (Credit: Getty Images / Theo Wargo)

Leslie Odom Jr.

Leslie Odom Jr. performs during the tree lighting
Leslie Odom Jr. performs during the tree lighting ceremony on Wednesday, Nov. 29, 2017. (Credit: Getty Images / Theo Wargo)

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Brett Eldredge

Brett Eldredge performs at the tree lighting ceremony
Brett Eldredge performs at the tree lighting ceremony on Wednesday, Nov. 29, 2017. (Credit: Getty Images / Theo Wargo)

The Rock Center tree

Rockefeller Center and its famous Christmas tree are
Rockefeller Center and its famous Christmas tree are all lit up on Wednesday, Nov. 29, 2017. (Credit: Corey Sipkin)

Spectators watch from windows

People watch from an upper floor of a
People watch from an upper floor of a building in Rockefeller Plaza as they wait to see the Christmas tree lighting on Wednesday, Nov. 29, 2017. (Credit: Corey Sipkin)

The crowd

People wait to see the tree lighting on
People wait to see the tree lighting on Wednesday, Nov. 29, 2017. (Credit: Corey Sipkin)