R&B star Ms Dynamite will face no action over allegations of assault in a London restaurant, police have said.
Ms Dynamite won the Mercury Music Prize in 2002
The 23-year-old performer was arrested and released on bail after reporting to police last month.
The alleged incident took place in a Chinese restaurant in Wardour Street, Soho, on 17 September.
The Mercury Music Prize winner, whose real name is Niomi McLean-Daley, recently took part in the recording of the new Band Aid single.
A Scotland Yard spokeswoman said: "She had been due to answer police bail
but there will be no further action in connection with this matter."
The star was arrested after she
voluntarily went to a police station following the incident.
She won the coveted Mercury prize for her album A Little Deeper in 2002 and has won a string of prizes since, including two Brit Awards and three Mobos.
Ms Dynamite took part in a London Stop the War rally and has performed for causes including Oxfam's Make Trade Fair campaign.
The outspoken star also made a plea to stop the rising tide of gun crime at a memorial for two girls shot dead at a New Year party in Birmingham in 2003.
Last year she was named media personality of the year at the Race in the Media Awards.