Singet dem Herrn ein neues Lied, BWV 190, is a church cantata by Johann Sebastian Bach. He wrote it in Leipzig for the New Year's Day and first performed it on 1 January 1724 as part of his first cantata cycle. He adapted it in 1730 to Singet dem Herrn ein neues Lied, BWV 190a, for the celebration of the bicentennial of the Augsburg Confession.