List of number one Reco-kyō Chart singles 2006–09
Other successfully charting artists include Exile with three months ("I Believe," "Ti Amo" and "Won't Be Long" with Kumi Koda) and Kobukuro with two months ("Aoku Yasashiku" and "Tsubomi").Three songs are tied for the most months charted: Thelma Aoyama featuring SoulJa's "Soba ni Iru ne," Greeeen's "Kiseki" and Hikaru Utada's "Flavor of Life."All three songs were extremely successful in the digital market: "Flavor of Life" was announced as the most successful single of all time in Japan totalling all formats (ringtone, cellphone full-length download, PC download, CD).[3] In 2008, "Soba ni Iru ne," was announced to be the best-selling digital single of all time in Japan by Guinness World Records,[4] an award given to Greeeen's "Kiseki" a year later.[5] Two songs charted for a total of two months on the chart, Greeeen's "Ai Uta," and "Sunao ni Naretara," a collaboration between R&B singer Juju with reggae/pop band Spontania, which was an answer song to their previous successful song "Kimi no Subete ni."