More than 70 dancers, musicians and actors protested against moves to restrict performing in public.
A colourful procession of morris dancers and samba drummers drew crowds of shoppers in South Street, Worthing, on Saturday.
Almost 300 signed a petition in support of the performers' efforts to stop a Bill which could make some public entertainment illegal without a licence.
Ditchling morrisman John Bacon, 61, said: "If the Bill is passed, a lot of morris sides may close down because they cannot afford to get a licence each time they perform".
Morris groups, Celebration Samba, Sunny Worthing Arts Group, Vanguard Theatre Productions and classical guitarist Richard Durrant performed for an hour at the protest, attended by Worthing West MP Peter Bottomley.
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