 By this time, Led Zeppelin were the world's number one rock attraction, having outsold most bands of the time, including the Rolling Stones. Presence, released in March 1976, marked a change in the Led Zeppelin sound towards more straightforward, guitar-based jams, departing from the acoustic ballads and intricate arrangements featured on their previous albums. Though it was a platinum seller, Presence received a mixed reaction among fans and the music press, with some critics suggesting that the band's excesses may have caught up with them. Page had begun using heroin during recording sessions for the album, a habit which may have affected the band's later live shows and studio recordings, although this has been denied by Page.
