Good Luck! / Futari

 (Good Luck! / ふたり; Good Luck! / Us) is the eighth single by SixTONES as well as their first double A-side single. It.

The song "Good Luck!" was featured as the theme song for the drama Saisho wa Paa starring member Jesse on TV Asahi, while the song "Futari" was featured as the theme song for the drama Tsuka no Ma no Ichika starring member Kyomoto Taiga on NTV.

Tracklist
Regular Edition=

CD
Limited Edition A=
 * 1) Good Luck!
 * 2) Futari (ふたり; Us)
 * 3) Sing Along
 * 4) Watashi (わたし) -Lo-Fi ChillHop Remix-
 * 5) Good Luck! [instrumental]
 * 6) Futari [instrumental]

CD

 * 1) Good Luck!
 * 2) Futari

DVD
Limited Edition B=
 * Good Luck! -Music Video-
 * Good Luck! -Music Video Making-
 * Good Luck! -Music Video One Cut Shooting ver.-

CD

 * 1) Futari
 * 2) Good Luck!

DVD

 * Futari -Music Video-
 * Futari -Music Video Making-
 * Futari -Music Video Solo Movie-