Simplify the following text for a Grade 11 native English-speaking person.
Original: Stone Temple Pilots , often abbreviated to STP , is an American rock band from San Diego , California that consists of Scott Weiland ( lead vocals ) , brothers Robert DeLeo ( bass guitar , vocals ) and Dean DeLeo ( guitar ) , and Eric Kretz ( drums , percussion ) .
Simplified: The band has Scott Weiland ( vocals ) , brothers Robert ( bass guitar , vocals ) and Dean DeLeo ( guitar ) , and Eric Kretz ( drums , percussion ) .