Simplify the following text for a Grade 6 native English-speaking person.
Original: Bloc Party are a British rock band , composed of Kele Okereke ( lead vocals , rhythm guitar ) , Russell Lissack ( lead guitar ) , Gordon Moakes ( bass guitar , synths , backing vocals , glockenspiel ) , and Matt Tong ( drums , backing vocals ) .
Simplified: There are four people in the band . Kele Okereke does the vocals and plays rhythm guitar , Russell Lissack plays the lead guitar , Gordon Moakes plays bass guitar and Matt Tong plays the drums .