As mentioned, any genre is possible for your event! I have extensive experience performing classical to the popular styles. Here are some popular options:

Classical

Air on the G String (Bach)

Ave Maria (Schubert)

Unaccompanied Suites 1-3 (Bach)

Bridal March (Wagner)

Canon in D (Pachelbel)

Clair de Lune (Debussy)

Eine Kleine Nachtmuski (Mozart)

Espana Tango (Albeniz)

Fantasias (Teleman)

Fur Elise (Beethoven)

Gymnopedie No. 1 (Satie)
Jesu, Joy of Mans Desiring (Bach)

Love Theme from Romeo and Juliet (Rota)

Meditation from Thaïs (Massenet)

Intermezzo from Cavalleria Rusticana (Mascagni)

Nocturne in C Sharp Minor (Chopin)

Ode to Joy (Beethoven)

O Mio Babino Caro (Puccini)

Ombra Ma Fai from Xerxes (Handel)

O Soave Fanciulla (Puccini)

Pie Jesu (Andrew Llloyd Weber)

Salut d'amour (Elgar)

Song Without Words (Tchaikovsky)

The Four Seasons (Vivaldi)

The Swan (Saint-Saëns)

Traumeri (Schumann)

Vocalise (Rachmaninoff)

Water Music (Handel)
Wedding March (Mendelssohn)




 

Popular Styles

A Dream is a Wish Your Heart Makes (Disney)

A Million Reasons (Lady Gaga)

A Thousand Miles (Vanessa Carlton)

A Thousand Years (Christina Perri)

A Whole New World (Disney)

All of Me (Billie Holiday)

All of Me (John Legend)

Always (Irving Berlin)

At Last (Etta James)

Autumn Leaves (Nat King Cole)

Banana Pancakes (Jack Johnson)

Because of You (Kelly Clarkson)

Best Day of My Life (American Authors)

Billie Jean (Michael Jackson)

Blackbird (The Beatles)

Can't Help Falling in Love (Elvis)

Can't Stop the Feeling (Justin Timberlake)

Can't Take My Eyes Off You (Frankie Valli)

Chasing Pavements (Adele)

Clocks (Coldplay)

Despacito (Luis Fonsi)

Dog Days are Over (Florence and the Machine)

Feelin' Good (Nina Simone)

Fly Me to the Moon (Frank Sinatra)

Hallelujah (Leonard Cohen)

Halo (Beyonce)

Happy (Pharrell)

Havana (Camila Cabello)

Hello (Adele)

Hey Jude (The Beatles)

Hey There Delilah (Plain White T's)

Hit Me with Your Best Shot (Pat Benatar)

How Deep is Your Love (Calvin Harris)

How Far I'll Go (Disney)

I Get a Kick Out of You (Jamie Cullum)

I Hope You Dance (Lee Ann Womack)

I Love You (Billie Eilish)

I Want it that Way (Backstreet Boys)

I Will Always Love You (Whitney Houston)

It's Raining Men (The Weather Girls)

Lava (Disney)

L-O-V-E (Nat King Cole)

Like I'm Gonna Lose You (Megan Trainor)

Little Red Corvette (Prince)

Make You Feel My Love (Adele)

My Funny Valentine (Sarah Vaughan)

Nine in the Afternoon (Panic! At the Disco)

November Rain (Guns N Roses)

Ocean Eyes (Billie Eilish)

Oh Darling (The Beatles)

Old Town Road (Lil Nas X)

Ordinary People (John Legend) 

Perfect (Ed Sheeran)

Royals (Lorde)

Shake it Off (Taylor Swift)

Shape of You (Ed Sheeran)

Somebody to Love (Queen)

Somewhere Over the Rainbow (IZ) 

Starships (Nicki Minaj)

Try Everything (Disney)

Themes from: Game of Thrones

Themes from: Hamilton

Themes from: Harry Potter

Themes from: Pirates of the Caribbean 

Themes from: Phantom of the Opera

Themes from: Star Wars

Valerie (Amy Winehouse)
Viva La Vida (Coldplay)

Walking on Sunshine (Katrina & The Waves)

What a Wonderful World (Louis Armstrong)

When the Party's Over (Billie Eilish)

When You Wish Upon a Star (Disney)

When Doves Cry (Prince)
Yellow Submarine (The Beatles)

You Raise Me Up

Your Song (Elton John)

You've Got a Friend in Me (Disney)