va Billboard Hot 100 Singles Chart 2015

Billboard is considered one of the most authoritative sources of music industry news. It has a circulation of 17,000 copies and an online audience of 1.2 million unique monthly views. The website includes Billboard charts, news divided by music genres, videos and a separate website. It also compiles various lists, hosts a fashion website called Pret-a-Reporter, and publishes eight different newsletters. Regular print magazine sections.

The Billboard Hot 100 is a chart that ranks the best-performing songs in the United States. Its data, published by Billboard magazine and compiled by Nielsen SoundScan, is based collectively on each song's weekly physical and digital sales, as well as the amount of airplay received on American radio stations and streaming on online digital music outlets.

"If Not For You" is the debut studio album by Australian singer Olivia Newton-John, released in November 1971 by Festival Records. The album was released on the Pye International label in the UK as "Olivia Newton-John", with slightly different covers. As a covers album, If Not for You features mostly songs previously recorded from contemporary artists of 1960s and early 1970s. She made several performances to promote "If Not For You" and her follow-up album, "Olivia", including an international tour with British singer Cliff Richard. It was her first album released by Festival Records, which would release all her albums in Australia until its dissolution in 2005. It also has Newton-John's first works with her long-time musical partner, John Farrar.