Listen to It Aint Necessarily So online. It Aint Necessarily So is an English language song and is sung by Сергей Жилин and Алла Сидорова. It Aint Necessarily So, from the album Легендарные мелодии ХХ века, was released in the year 2008. The duration of the song is 4:19. Download English songs online from JioSaavn.