Toccata & Fugue in D Minor, BWV 565

Bach

Castle's phone rings as Martha calls to check on him.

We'll Meet Again

Vera Lynn

Castle plays the USB drive in the pen.

Walking With Giants

Blondfire

Alexis accompanies Mandy on her visit with bartender friend, Sam.

Applause

Lady Gaga

Mandy is questioned by reporters as she arrives at a club.

Spybreak

Propellerheads

Castle & Beckett get their first look at Matilda King.

Icarus

Sirah

Two of Madison's friends are pulled out of the Winter Ball and questioned about their involvement in her death.

Sexy

Miss Amani

Castle, Ryan & Esposito enter Miyago.

Wild Thing

The Troggs

A guy does karaoke as Castle & one of the girls head to a private room.

What I Like About You

The Romantics

One of the girls drags Ryan on stage to sing a karaoke song.

Last Dance - Single Version

Donna Summer

Castle & Beckett toast to Harold as he dances alone.

Let the Music Take You High

Bob McGilpin

Everyone gathers at Glitterati to celebrate Harold saying goodbye to the '70s.

No Waves

FIDLAR

Castle & Beckett head off to question Tommy.

Gimme a Knife

Wavves

Castle & Beckett arrive at Ross's party and arrest him for Logan & Jay's murders.

Scratch Flower

The Delta Riggs

Beckett & Castle arrive at the New York Street Sports event.

Beckett goes to a bar looking for Rogan and finds him being attacked by a woman.

Vivaldi Spring

Antonio Vivaldi

Kate puts on her wedding dress.