Tsunagu

 (つなぐ; Connect) is the 52nd single by ARASHI. It and sold about 389,000 copies in the first week and topped the Oricon Weekly Single Ranking.

The title song was featured as the theme song for the movie Mumon: The Land of Stealth starring Ohno Satoshi.

The coupling song "Reach for the sky ～Ten made Todoke～" was featured in the JAL "Sakitoku Campaign 2017" commercial.

Tracklist
Regular Edition=

CD
Limited Edition=
 * 1) Tsunagu (つなぐ; Connect)
 * 2) Reach for the sky ～Ten made Todoke～ (Reach for the sky ～天までとどけ～)
 * 3) Dakishimetai (抱きしめたい; I Want to Hug You)
 * 4) Under the radar
 * 5) Tsunagu [original karaoke]
 * 6) Reach for the sky ～Ten made Todoke～ [original karaoke]
 * 7) Dakishimetai [original karaoke]
 * 8) Under the radar [original karaoke]

CD

 * 1) Tsunagu
 * 2) Okinimesumama (お気に召すまま; As You Like It)
 * 3) Okinimesumama [original karaoke]

DVD

 * 1) "Tsunagu" Video Clip & Making