Iza, Now

 (いざッ、Now) is the fourth full-length album by ARASHI. It in two versions: a limited edition (JACA-5014) and a regular edition (JACA-5015). The album features a total of 15 songs including the music in advertising "RIGHT BACK TO YOU" for a Parco commercial. The limited edition comes with a DVD containing five fan-chosen music videos.

The album reached number one on the Oricon charts, selling 115,000 copies in its first week. In July 2004, the album was certified Gold for shipments of 100,000 copies by the Recording Industry Association of Japan.

The album was available on digital streaming services starting on February 7, 2020.

CD

 * 1) "Kotoba Yori Taisetsu na Mono" (言葉より大切なもの) - 4:03
 * Lyrics: TAKESHI
 * Rap lyrics: Sakurai Sho
 * Music: Iida Takehiko
 * Arrangement: Ishizuka Tomoki
 * 1) "JAM" - 4:12
 * Lyrics: Kubota Youji
 * Music: Tobias Lindell, Joel Eriksson, Victor Wiszniewski
 * Arrangement: Iwata Masayuki
 * 1) "The Bubble" - 3:54
 * Lyrics: SPIN
 * Rap lyrics: Sakurai Sho
 * Music: Peter Bjorklund, Joel Eriksson
 * Arrangement: AKIRA
 * 1) "Thank you for my days" - 4:55
 * Lyrics: TAKESHI
 * Music & Arrangement: Iwata Masayuki
 * 1) "PIKA★★NCHI DOUBLE" - 5:08
 * Lyrics: SPIN
 * Rap lyrics: Sakurai Sho
 * Music: Morimoto Kosuke
 * Arrangement: Ishizuka Tomoki
 * 1) "keep a peaK" (inst.) - 1:51
 * Music & Arrangement: Yoshioka Taku
 * 1) "EYES WITH DELIGHT" - 4:30
 * Lyrics: Kubota Youji
 * Rap lyrics: Sakurai Sho
 * Music: Komorita Minoru
 * Arrangement: Ishizuka Tomoki
 * 1) "RIGHT BACK TO YOU" - 3:35
 * Lyrics: SPIN
 * Rap lyrics: Sakurai Sho
 * Music: Peter Bjorklund, Joel Eriksson
 * Arrangement: ha-j
 * 1) "RAINBOW" - 4:17
 * Lyrics: Kubota Youji
 * Music: Komorita Minoru
 * Arrangement: Ishizuka Tomoki
 * 1) "Hadashi no Mirai" (ハダシの未来) - 4:40
 * Lyrics & Music: Miyazaki Ayumi
 * Arrangement: CHOKKAKU
 * 1) "Yasashikutte Sukoshi Baka" (優しくって少しバカ) - 3:43
 * Lyrics & Music: Inoue Takeshi
 * Arrangement: ha-j
 * 1) "Dear My Friend" - 4:55
 * Lyrics: Ogawa Takashi
 * Music & Arrangement: Seki Junjiro
 * 1) "Kimidake wo Omotteru" (君だけを想ってる) - 4:49
 * Lyrics: Kubota Youji
 * Music: Makaino Koji
 * Arrangement: Otsubo Naoki
 * 1) "Check no Muffler" (チェックのマフラー) - 5:19
 * Lyrics: TAKESHI
 * Music: Morimoto Kosuke
 * Arrangement: Iwata Masayuki
 * 1) "Tochuu Gesha" (途中下車) - 4:15
 * Lyrics: SPIN
 * Music: Morimoto Kosuke
 * Arrangement: ha-j

DVD

 * ARASHI Best 5 Clips
 * A-RA-SHI
 * a Day in Our Life
 * "Kimi no Tame ni Boku ga Iru" (君のために僕がいる)
 * "Typhoon Generation" (台風ジェネレーション -Typhoon Generation-)
 * "Tomadoi Nagara" (とまどいながら)