Singer/songwriter Nik Freitas is a sponge. In one instance, his downtempo tracks seem honorably stolen from Mind Games-era Lennon and the next, contemporaries like M. Ward and an early Ben Kweller. The thing that sets Freitas apart from all the other sponges in town is that we actually believe him. Sincerity will always prevail. Freitas plays The Echo this Saturday night with AA Bondy.