Wasurenai yo
Introduction  is Thelma Aoyama's seventh single, and her second in 2009.It was released on  August 5, 2009.The title is the theme song for ''Hachi: A Dog's Tale'', which was released in Japan on August 8.The B-side, "Don't Stop", features vocals by AI. The CD+DVD edition of the single includes the music video for "Wasurenai yo".
Track listing
Live performances # 08/03 - Wasurenai yo - Hey! Hey! Hey!# 08/07 - Wasurenai yo - Music Station
Charting and release On its first day on the Oricon charts the single debuted at #20, it has since peaked at #14.The single eventually debuted at #20 on the Oricon weekly chart, selling 4,722 physical copies that week. In its second week the single dropped three places to #23 and sold a further 3,117 copies, and sold 1,642 in its third week, bringing the total sales to 9,481 copies sold.=== Oricon Charts ===Charts (2009)PeakPositionOricon Daily Chart14Oricon Weekly Chart20'''Total sales:''' 9,481*=== Billboard Japan Charts ===Charts (2009)PeakPositionBillboard Japan Hot 100  13
External links *  Oricon Profile