Jiro Okada! Jiro Okada was born in 1967 in Japan. He started studying bass at the age of 12, however he did not take music seriously until he was in his early 20s; he states that he started taking music seriously and performing at a professional level when he was 22. A couple of years later, in 1994, he started performing with well-known Japanese singer Mariko Takahashi and was a part of Marikos touring band for 15 years. Click below to read more and to download a Jiro Okada Time Warp Transcription.