Tracy Chapman, Martin Sexton, and Amanda Palmer are just three example of Buskers who got started as street performers in Harvard Sq.

Cambridge

www.cambridgema.gov/CAC/Permits/Permits.cfm

In accordance with
the City of Cambridge Street Performer Ordinance, performer permits are issued by the Cambridge
Arts Council located at 344 Broadway, 2nd floor.

The permit fee is $40.00 (cash only) and all
permits remain active from the date of issue until the end of the
current calendar year on December 31st. CAC staff will work with
individuals interested in securing a permit to determine whether or not
the intended performance meets the definition for performance contained
in the Ordinance and to provide advice on strategies for successful
interactions with residents, local businesses and fellow performers.

Download the Street Performer Application

MBTA: Subway Performers Program

www.mbta.com/business_center/subway_performers

The MBTA allows musical performers at designated
Performance Areas throughout the subway system on a daily basis.
Performers must obtain a photo permit from the MBTA and agree to all
terms of the Authority′s Subway Performers Program Policy.
Designated
Performance Areas by Subway Station.
MBTA Subway Performers Program Application,
Directions to TRA

Faneuil Hall Marketplace

http://www.faneuilhallmarketplace.com/?q=streetperformers

• Street
  Performer Audition Application
• Resume
  and 1 8 x10 Head Shot
• Music
  Acts please send CD or DVD of your music
• Variety
  Acts please send anunedited DVD of your show that’s from the street
  i.e.: fairs, busker festival.  No Home Videos will be accepted
• If you
  would like your CD or DVD send back to you please provide a self
  addressed stamped envelope with your press material