The final masked celebrities bring the house down with renditions of "Black Horse and the Cherry Tree," "Moon River," "Freedom! '90," "Stay" and more, while the panelists use the biggest clues yet to make their final guesses for a chance to win.

The Masked Singer

The Two-Hour Lucky Season 13 Finale

The four semifinalists battle it out ahead of next week's blockbuster season finale; an unmasking.

The Semi-Finals: Head-to-Head Battles

The final five perform "Sk8er Boi," "Million Reasons," "Golden Hour," "Your Love" and "The Scientist"; one celebrity must reveal themselves while the rest advance to the semifinals.

Quarter Finals: Soundtrack of My Life Night

The final six celebrities are ready to battle it out to get one step closer to the elusive Golden Mask Trophy; the panelists have an opportunity to ask some rapid-fire questions to each masked contestant.

The Lucky 6: Merging of the Masks

Each celebrity performs a hit from an iconic era.

Group C Finals: Decades Night

Paying tribute to boy bands; contestants perform iconic boy band classics like "Tearin' Up My Heart," "Poison," "Step By Step" and "I Swear."

Boy Band Night

The celebrities deliver astounding performances of "Hot to Go," "Jump Around," "Roxanne," "Let's Get Loud" and "Unwell."

Group C Premiere: Carnival Night

The Group B finalists perform "Save a Horse (Ride a Cowboy), and renditions of "Here You Come Again," "Take Me Home, Country Roads" and "Something in the Water."

Group B Finals

Group B performs for the judges; special guest Ernie Hudson.

Ghostbusters Night

Five new masks appear as the Voices of Olympus; contestants perform showstopping renditions of "I Believe In a Thing Called Love," "Bad Blood," "Rewrite the Stars," "Espresso" and "Saving All My Love For You."

Group B Premiere: Voices of Olympus

Group A swoons, sings and serenades the audience with some of the Rat Pack's most iconic classics.

Group A Finals: A Rat Pack Tribute Night

Group A channels their inner fairytale by performing songs from or inspired by the "Shrek" movie franchise.

Shrek Night

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A top-secret singing competition in which celebrities face off against each other and appear in elaborate costumes with full facemasks to conceal their identities.

S13 E4 | Group B Premiere: Voices of Olympus