This is a list of the best-selling singles in 1999 in Japan, as reported by Oricon.

Ranking Single Artist Release Sales 1"Dango 3 Kyodai"Kentarō Hayami & Ayumi Shigemori2,918,000 2"Winter, Again"Glay1,638,000 3"A"Ayumi Hamasaki1,622,000 4"Energy Flow"Ryuichi Sakamoto1,519,000 5"Automatic" Hikaru Utada1,290,000 6"Addicted to You"1,290,000 7"Movin' On Without You"1,226,000 8"Love Machine"Morning Musume1,207,000 9"Be with You"Glay1,173,000 10"Heaven's Drive"L'Arc-en-Ciel1,124,000 11"Flower"KinKi Kids1,039,000 12"Boys & Girls"Ayumi Hamasaki1,033,000 13"Last Chance "Something Else998,000

References