Friends is the fourth Mini-Album for the Japanese rock duo B'z. The album sold 1,355,530 copies and reached #1 at Oricon. The track "Itsuka no Merry Christmas" became extremely commercially successful, being certified by the RIAJ as being downloaded 500,000+ times as a ringtone and more than 100,000 times as a full-length cellphone download, despite being released in the early 1990s and not as a single.

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