Few things define a great musical like a great song. The very best show tunes do more than fill the interval playlist: they crystallise a character, turn a story on its head, or simply raise the roof. Drawing on decades of West End history - and a public poll of more than a hundred favourites - here is our ranking of the ten greatest West End show tunes of all time.

1. One Day More - Les Misérables

Voted the greatest show tune of all time in WhatsOnStage’s public poll, “One Day More” is the towering first-act finale of Les Misérables. On the eve of revolution, Boublil and Schönberg weave every principal’s melody and motivation into a single, surging ensemble: lovers, rebels and the relentless Inspector Javert all singing at once. It is the West End’s ultimate goosebump moment, and a thoroughly deserving number one.

Listen to ‘One Day More’ on YouTube

2. Defying Gravity - Wicked

The first-act finale of Wicked is the sound of a heroine choosing herself. As the green-skinned Elphaba rejects the Wizard and rises - literally - above those who would hold her down, Stephen Schwartz’s score delivers one of modern theatre’s great belt-it-to-the-rafters moments, climactic riff and all. It is the number every aspiring Elphaba dreams of singing, and you can still hear it at Wicked in the West End.

Listen to ‘Defying Gravity’ on YouTube

3. The Music of the Night - The Phantom of the Opera

Andrew Lloyd Webber’s most seductive ballad, “The Music of the Night” is the moment the Phantom lures Christine into his candlelit lair beneath the Paris Opera House. Originated in the West End by Michael Crawford in 1986, it is a hymn to the intoxicating power of music itself - and one of the most romantic, and quietly sinister, songs in the whole canon. The Phantom of the Opera continues to play in the West End to this day.

Listen to ‘The Music of the Night’ on YouTube

4. Alexander Hamilton - Hamilton

Few opening numbers do as much heavy lifting as “Alexander Hamilton”. In barely four minutes, Lin-Manuel Miranda’s company sketches the entire backstory of its hero while introducing the show’s revolutionary fusion of hip-hop and traditional musical theatre. By the time the title character steps forward, Hamilton has already announced itself as something the West End had never seen before.

Listen to ‘Alexander Hamilton’ on YouTube

5. Memory - Cats

Andrew Lloyd Webber’s Cats gave the world one of its most famous songs in “Memory”, sung by the faded “glamour cat” Grizabella as she yearns for happier days. With a lyric by director Trevor Nunn, after T.S. Eliot, and a melody since recorded hundreds of times, it was first delivered in the West End by Elaine Paige in 1981 and remains the benchmark for an emotional showstopper.

Listen to ‘Memory’ on YouTube

6. Seasons of Love - Rent

Jonathan Larson’s Rent updated La Bohème for a generation living through the AIDS crisis, and “Seasons of Love” opens its second act with one of theatre’s most quoted questions: how do you measure a year? The answer - “five hundred, twenty-five thousand, six hundred minutes” - has become an anthem in its own right, lifted by a gospel-tinged arrangement and a goosebump-raising solo.

Listen to ‘Seasons of Love’ on YouTube

7. Come What May - Moulin Rouge!

Baz Luhrmann’s Moulin Rouge! set its love story to a whirl of pop anthems, but its beating heart is the one number written specially for it. “Come What May” is the secret song the penniless poet Christian and the cabaret star Satine swear they will never abandon, a soaring vow of devotion that survives the move from screen to stage intact. Moulin Rouge! The Musical continues to dazzle West End audiences with it night after night.

Listen to ‘Come What May’ on YouTube

8. Don’t Rain on My Parade - Funny Girl

The blazing first-act finale of Funny Girl, “Don’t Rain on My Parade” is pure defiance set to music by Jule Styne and Bob Merrill. Immortalised by Barbra Streisand as Fanny Brice and revived in the West End with a barnstorming turn from Sheridan Smith, it is the sound of someone refusing to be told no - and an absolute gift for a belter.

Listen to ‘Don’t Rain on My Parade’ on YouTube

9. Tonight - West Side Story

Leonard Bernstein and Stephen Sondheim reimagined Romeo and Juliet on the streets of New York, and “Tonight” is its soaring heart. Whether as the tender balcony-scene duet between Tony and Maria or the breathless “Tonight Quintet” that draws the entire company together on the brink of violence, it is one of the most thrilling pieces of musical storytelling ever written.

Listen to ‘Tonight’ on YouTube

10. Dancing Queen - Mamma Mia!

No countdown of West End showstoppers would be complete without ABBA, and Mamma Mia! built a global phenomenon around their songbook. “Dancing Queen” is its glitterball centrepiece - a feel-good anthem of pure joy that has the whole theatre on its feet long before the final chorus. ABBA’s 1976 original remains the definitive recording, and few numbers send an audience home happier.

Listen to ‘Dancing Queen’ on YouTube