Daigo Naitō (内藤 大湖 Naitō Daigo, born April 8, 1978 in Tokyo, Japan), formerly known as Daigo☆Stardust, is a Japanese singer-songwriter, actor and voice actor. He debuted in 2003 as Daigo Stardust under Victor Entertainment. In 2007, he formed the rock band Breakerz. With the solo debut of Akihide, Daigo continued his solo project in 2013, but dropped the pseudonym surname "Stardust", He is now known as DAIGO. He voices Daigo in the Cardfight!! Vanguard Anime. He also appeared in the Stand Up! Vanguard live-action film on May 3rd, 2012. He has sung the 2nd Opening of Cardfight!! Vanguard: Link Joker. In 2015, Daigo and his band, BREAKERZ sang the opening for Cardfight!! Vanguard G: GIRS Crisis and reprised his role as Daigo again.
Daigo is married to the actress Keiko Kitagawa.