Don't think you need to apply for a Fire Safety Certificate for
roadshows lah... The landlord or Strata Management of the mall have
it and it's a must have for the mall to commence operations and
occupancy...
The undertaking of Fire Safety will be by the mall's Fire Safety
Manager (FSM) for any form of fire safety preventive measures taken
during the roadshows like provision of suitable, adequate and
capable fire extinguishers, non-choking of access passages and also
not overcrowding the area are some pre-requisites...
The thing your friend need to check is with Public Entertainment
Licensing Unit (PELU) for any possible permit required for the
roadshows...
For more information, can check on http://www.scdf.gov.sg
Hope this information helps... 
