Which has more members, Tegan and Sara or The dB's?
Tegan and Sara: Tegan and Sara are a Canadian indie pop band formed in 1998 in Calgary, Alberta, composed of identical twin sisters Tegan Rain Quin and Sara Keirsten Quin (born September 19, 1980). The dB's:  The band members are Peter Holsapple, Chris Stamey, Will Rigby and Gene Holder.
i don't know