Here's the list!

Alicia Keys
Fallin'

Anastasia
At the Beginning

Andrea Bocelli

Bart Millard
I can only Imagine

BoA
Every Heart

Bryan Adams
Heaven

Celine Dion
My Heart Will Go On

Chris Brown
With You

Chris Daughtry
Home

Christina Aguilera
Beautiful

Coldplay
Viva La Vida
A Rush of Blood to the Head
Speed of Sound
Scientist
Clocks

Enrique Iglesias
Hero

Five For Fighting
Superman
100 Years

Full House OST
Amazing Love
I Think
Why

Henry Mancini
Romeo and Juliet Love Theme

Indiana Jones
Indiana Jones Main Theme

James Blunt
You're Beautiful

Jim Brickman
My Valentine

Jon McLaughlin
So Close

Josh Groban
You Raise Me Up

Kelly Clarkson
A Moment Like This
Because of You

Lord of the Rings
Aniron
In Dreams
Rohan
May It Be

Mariah Carey
Hero

Michael Buble

Michael Nyman

Neyo
Mad

One Republic
Apologize
Stop and Stare

Phantom of the Opera
Phantom of the Opera
Angel of Music
Think of Me

Pirates of the Caribbean
He's a Pirate

Regina Spektor
The Call

Richard Clayderman
Ballade Pour Adeline 1 2 3 4
Marriage D'amour
A Comme Amour
Poetic Sonatina

Richard Marx
Right Here Waiting for You

Roxette
Listen to your Heart

Sara Bareilles
Love Song

Sara McLachlan
Angel

Scott Joplin
The Entertainer

Shrek
Hallelujah

Spring Waltz OST
Clementine 2 3 4
Flashback 2 3 4
Flying Petals 2 3 4

Star Wars
Stars Wars Main Theme

Stairway to Heaven OST
Bo Go Ship Da

Steven Cravis
Through the Kaleidoscope

The Daydream
My Home

The Fray
How to Save a Life

Utada Hikaru
Hikari (Light) 2 3 4 5 6

Vanessa Carlton
A Thousand Miles

Westlife
My Love
Flying Without Wings

Winter Sonata OST
Chuh Eum Bu Tuh Ji Geum Kka Ji
My Memory

Yiruma (In order from most to least popular top to bottom)
River Flows in You
Kiss The Rain
Maybe
When The Love Falls
Love Me
Do You?
Wait There
Dream
Indigo
Chaconne
I
Passing By
Gabriel
One Day I Will
The Scenery Begins
It's Your Day
Dream a Little Dream of Me
May 27
Shining Smile
What Beautiful Stars
Destiny of Love
Falling
If I Could See You Again
The Moment
Tears on Love
Beloved
Mika's Song
Spring Time
Till I Find You
Love Hurts
Yellow Room
Hoo Ae
Time Forget
All Myself To You
Sunny Rain
White Shadow
Spring Rain
I'm Just A
The Sunbeams They Scatter
Because I Love You
Lost in Island
Nul Geu Ri Dah
Our Same Word
Leave Behind
The Day After
Badaeul Son Yul
Sometimes, Someone
First Time 1 2 3
Hu Ai