Dappy appeared on the court list under his real name Dino Costas Contostavlos. He had denied attacking George Chittock in the early hours of February 27 during a public appearance at Chicago's nightclub in Chelmsford. Dappy claimed he lashed out in self-defence.
But he was convicted by magistrates at Chelmsford Magistrates' Court. Chair of the bench Angela Tucker said the magistrates had found Contostavlos was not under any physical threat at the time of the incident. He held is head in his hands as the verdict was delivered.
More top news
A Tube and rail strike planned for Wednesday evening could bring the capital to a standstill causing travel chaos for millions of commuters
The only Muslim survivor of the 7/7 terror attack in London has urged the country to stand together against Islamophobia.
Police are appealing for information after a well known DJ was shot five years ago in north London.