In March 1977, when The Rolling Stones performed "Worried About You" live at the Mocambo in Toronto, they were in a transitional phase of their career. Their previous studio album, "Black and Blue," had been released in 1976, which introduced the band's new musical direction following the departure of guitarist Mick Taylor. "Worried About You," while initially written during the sessions for "Black and Blue," was not officially released until 1981 on the album "Tattoo You." This performance is significant as it showcases the band's ability to breathe life into new material before its studio release, solidifying their reputation for dynamic live shows. Additionally, the Mocambo concert was part of a series of secret gigs intended to promote the album, highlighting the band's commitment to connecting with fans in intimate settings during this period.