Released in February 1975, Have You Never Been Mellow is one of Olivia Newton-John’s most popular albums, showcasing her gentle blend of pop and country influences. It features the hit title track “Have You Never Been Mellow,” which reached No. 1 on the Billboard Hot 100, along with favorites like “Please Mr. Please.” The album’s laid-back tone and warm vocals captured Newton-John’s signature easygoing style and helped cement her status as one of the leading crossover artists of the 1970s.