The flash mob took part in the Buttermarket on Saturday afternoon.
The event raised funds for Cancer Research UK and the Woolverstone Wish appeal to build a new, state-of-the-art cancer centre, named the Woolverstone Macmillan Centre, at Ipswich Hospital.
Participants danced along to a variety of Michael Jackson hits as Ipswich Mayor Glen Chisholm showcased his dancing abilities in front of amazed crowds in Ipswich town centre.
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