The song Wake Up Your Heart, the second ending of the anime Yu-Gi-Oh! GX, sang by KENN with The NaBs. Contains both Japanese and romaji lyrics. KENN is also the voice actor of the protagonist Yuki Judai.
Source of image: http://www.pixiv.net/member_illust.php?mode=medium&illust_id=2630150
Romaji lyrics thanks to: http://atashi.wordpress.com/2006/09/23/yu-gi-oh-duel-monsters-gx-2nd-ending-theme-wake-up-your-heart/
Japanese lyrics from: http://gendou.com/amusic/lyrics.php?id=6662&show=1
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