If You Love Me, Let Me Know is the fourth studio album by singer Olivia Newton-John, released on 28 May 1974 in North America only. Other than the title track, 3 songs were from her previous two international albums, Olivia (1972), Music Makes My Day (1973) and 6 were released just 1 month later on her international album, Long Live Love (1974). It was her first album to top the Billboard Pop album chart as well as her first million selling LP in America. This album received very positive reviews from music critics at the time of its release its widely considered one of Olivia's best early albums. No. 1 on the Billboard 200 for 1 week, from the issue of October 12, 1974. Wiki link