Former N-Dubz singer Dappy slapped a member of the public outside a nightclub in Chelmsford, Essex, a court has heard.
The 27-year-old, whose real name is Dino Costas Contostavlos, is accused of attacking George Chittock after a "meet and greet" at Chicago's in the early hours of February 2.
The pair were in a smoking area along with Contostavlos's minder and two of the club's own doorstaff at about 2am when he was seen to slap Mr Chittock, Prosecutor Jaqueline Carey told the court.
He denies assault by beating and is standing trial at Chelmsford Magistrates' Court.
More top news
Showers across parts of Wales and southern England on Saturday will be heavy at times.
Thousands of Buddhist and Taoist temples and shrines, along with mosques and churches, were damaged or destroyed under communism.
More than 11,000 fans voted on Twitter.