DJ Mr. Blobby (real name Hong Oh-seong (홍오성) - born August 4, 1969) is a South Korean-born British DJ, turntablist, and mixer. He was born in Incheon, South Korea and moved with his father to London, England at the age of 3. He currently resides in Stratford-upon-Avon, Warwickshire, England, and is a member of Second Beat Records.

He is best known for wearing a modified Mr. Blobby costume during most of his performances.

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