One of the best K-Pop albums of the last decade, critically acclaimed Red Velvet's The ReVe Festival Finale shows the versatility of one of Korea's biggest girl groups today, with its experimental "Day 1", its summery "Day 2", and its dauntless "Finale". It also has shown a great concept that the group has never done before, a consistent trilogy showing different types of music never done in K-Pop before with some exceptions and showing inspirations of different eras. Rules:  1)