US R&B singer Kelis has had all charges relating to an incident in Miami against her dropped.

The singer was arrested in 2007 after interrupting and abusing police as they interviewed a group of men, including her husband, rapper Nas.

She was charged at the time with resisting arrest and disorderly conduct.

But a Judge in Miami has now dropped all the charges against her, effectively closing the case.

Kelis, who released her most famous hit 'Milkshake' five years ago, married Nas in 2005.

(by Jason Gregory)