Muhammad Aizat bin Amdan (born 21 January 1989) or commercially known as Aizat Amdan, or Ai.Z, is a Malaysian singer-songwriter. Aizat began his music career as a contestant in the 5th season of Malaysian reality TV singing contest Akademi Fantasia A while after the contest ended, Aizat surprised the Malaysian public and his fans with his new look, managing to lose 30 kg from a previous 112 kg. Aizat is well known for inducing creative sounds and lyrical prose within his songs. He describes his music as a mixture of pop rock and alternative music influenced by Britpop.