Battling sickness and Bieber-like cheers, Tegan & Sara rose to the occasion at L.A.’s Club Nokia last week. Battling sickness and Bieber-like cheers, Tegan & Sara rose to the occasion at L.A.’s Club Nokia last week. Battling sickness and Bieber-like cheers, Tegan & Sara rose to the occasion at L.A.’s Club Nokia last week. Battling sickness and Bieber-like cheers, Tegan & Sara rose to the occasion at L.A.’s Club Nokia last week.

Battling sickness and Bieber-like cheers, Tegan & Sara rose to the occasion at L.A.’s Club Nokia last week.