Twenty phones were swiped from concertgoers at the Brooklyn Paramount, according to the NYPD.
The pick-pocketing spree took place during a Hot Mulligan concert on Nov. 7.
Police say the victims discovered their phones were missing at around 8:30 p.m. while inside the Downtown Brooklyn music hall.
The phones were turned off after the theft and could not be tracked.
No arrests have been made.
News 12 reached out to Live Nation, the music hall’s operator, and is awaiting a response.