"Fake" (stylized in caps) is a song recorded by Japanese-American singer-songwriter Ai.

It was released on March 31, 2010, by Island Records and Universal Sigma.

It is one of many releases intended to celebrate Ai's 10th anniversary since her debut, with many further collaborations planned.

Once in 2003 as part of the Suite Chic project on the song "Uh Uh......", and once again in 2006 on Zeebra's song "Do What U Gotta Do" with Namie Amuro & Mummy-D.[2] Before the release of the physical single, the track had been downloaded 30,000 times as a cellphone full-length download, and the music video viewed over 50,000 times on YouTube.

[3] In May 2010, the RIAJ certified the song as Gold, selling over 100,000 downloads.