"Best of Both Worlds " was a single by Miley Cyrus and the theme song of TV series "Hannah Montana"

The Japanese song title is Hanna to Mairi ~Futatsu no Sekai (Hanna and Miley - Two Worlds) ハンナとマイリー　~ふたつの世界

Aya performed it on a Disney Channel SP

Mus/Lyr: Matthew Gerrard, Robbie Nevil

TV version:

Kanji

お出かけはリムジン　
いつでも流行りのファッション
すごい人気のミュージシャン　　
だけど誰も知らない素顔
普通の女の子なのに　　
ステージではスター

You get the best of both worlds
すてきなとこ独り占めよ
You get the best of both worlds　　
イイとこだけ　どっちも楽しめるWao!
the best of both worlds　

You get the best of both worlds
すてきなとこ独り占めよ
You get the best of both worlds　　
イイとこだけ　どっちも楽しめる
You know the best of both worlds

おしゃれしてポーズ飾るカラーグラビア
今がベスト　なりたい自分になれる
Best! Best！　　
Yeah the best of both 　
Best! Best！　　
You get the best of both
Best! Best！
Come on the best of both

誰にもバレないけど　
本当はスーパースター　
Yeah!

You get the best of both worlds　
どこでも行ける素顔ならね
二つの顔を持っているの　
Oh yeah!
二つの世界　　
どっちも大好き　最高!!

Romaji

Odekake wa rimujin
Itsudemo hayari no fasshon
Sugoi ninki no myuujishan
Dakedo daremo shiranai sugao
Futsuu no onna no ko na no ni
Suteeji de wa sutaa

You get the best of both worlds
Suteki na toko hitorijime yo
You get the best of both worlds
Ii toko dake docchi mo tanoshimeru Wao!
the best of both worlds

You get the best of both worlds
Suteki na toko hitorijime yo
You get the best of both worlds
Ii toko dake docchi mo tanoshimeru
You know the best of both worlds

Oshare shite poozu kazaru karaa gurabia
Ima ga besuto naritai jibun ni nareru
Best! Best!
Yeah the best of both
Best! Best!
You get the best of both
Best! Best!
Come on the best of both

Dare ni mo barenai kedo
Hontou wa suupaa sutaa
Yeah!

You get the best of both worlds
Dokodemo ikeru sunao nara ne
Futatsu no kao wo motteiru no
Oh yeah!
Futatsu no sekai
Docchi mo daisuki saikou!!

Translation

Going out in limousines
Always dressed in the latest fashion
A super popular musician
But your real face, which noone knows
Is that of a normal girl
But you're a star on stage

You get the best of both worlds
Dominating all the best things
You get the best of both worlds
All the good things, always having fun Wao!
the best of both worlds

You get the best of both worlds
Dominating all the best things
You get the best of both worlds
All the good things, always having fun
You know the best of both worlds

Dressed stylishly, in a decorative pose, a colour pin-up girl
You have become the best person you can ever be
Best!Best!
Yeah the best of both
Best!Best!
You get the best of both
Best!Best!
Come on the best of both

Nobody knows the truth
You are a true superstar
Yeah!

You get the best of both worlds
Just take off your make-up and you can go anywhere
Because you have two faces
Oh yeah!
Two worlds
I love them both, it's the best!!