I try and sing all her songs...but I can't really sing. >.<
My current favourites to sing are:
GREEN, Mirrorcle World, SEASONS, talkin' 2 myself, glitter, untitled ~for her~, I am.., evolution, Trauma, TO BE, Boys & Girls, ANGEL'S SONG, Memorial address, Life, STEP you, Will, rainy day, Moments, About You, GAME, HONEY, HANABI, Voyage.

I'm currently trying to sing INSPIRE...it's too hard though. :S

Listed in order of how much I sing along...

Depend on you
A song for ××
SURREAL
NEVER EVER (Hahaha easy lyrics...)
And Then
Startin'
Trust
BLUE BIRD
TO BE
Fly high
.............................. too many more to continue~~~~~~~~~~~~~~~~

Mirrrorcle World hands down... I love to do her vibrato!

Mirrorcle World!:luv2


Believe it or not I went KBox on Saturday(karaoke)
I feel that I sounded like Ayu?or is it my ears have problem:P
anyway I decided to take part in my school's Got talent on Teacher's Day
so I hope to make it to the finals to promote AYUnism in my school!

JEWEL definitely~
then...
mirrorcle world
t2m
voyage maybe..
moments
maybe more in the future~

Heartplace
A Song for XX
rainy day
SEASONS
Daybreak
A Song is born

Hmm I normally sing any song that I can remember the lyrics of! But my favorites would have to be...
M
HEAVEN
Dearest
Ladies Night (Ladies naiaiaiaiaiaight~)
Carols
Mirrorcle World
Moments (the la la la = <3)
HANABI
Dolls

I have quite a few but Startin', SURREAL, Mirrorcle World, Days and GREEN are probably what I sing the most!

I've started singing Daybreak, HEAVEN, NEVER EVER, Because of You and GREEN