Chris ‘Doc” Brown (guitar, vocals) replaced Burton after he left.
Ayers Rock was one of several bands who appeared at the 1975 Australian Concert for Bangladesh held in April at the Myer Music Bowl in Melbourne.
The concert was organised by Freedom from Hunger and other acts included La De Das, Jim Keays, AC/DC, Phil Manning, Daddy Cool, Hush, Toulouse & Too Tight, The Dingoes and Moir Sisters.
Ayers Rock’s first album, Big Red Rock (November 1974) was recorded before a live audience at Armstrong’s Studios in Melbourne over two nights in September, 1974.
It featured mainstream rock and three longer, instrumental tracks which introduced progressive styles, including jazz fusion.
Label owner Michael Gudinski promoted Ayers Rock in Los Angeles and they were signed by A&M Records.
In fact, they were the first Mushroom Records artists to sign with an international label.
The United States release of Big Red Rock in February, 1975 was followed by a tour there later in the year.
The band played to large crowds, supporting major international artists such as Bachman–Turner Overdrive), performing before crowds of 35,000 people – the first Australian band to perform in large US stadiums.
Ayers Rock was named 1975 Musicians of the Year on RAM‘s “New Year’s Honors List”.
Drummer Kennedy left before their second album, Beyond (April 1976, recorded at the Record Plant in Los Angeles), was released.
The album blended a number of music genres and again received a positive critical reception, charting at number 50.
The band toured the US again; Loughnan remained there and Ayers Rock temporarily broke up in August, 1976.
A year later Doyle and Brown recruited members for a new lineup, including Andy Cowan (keyboards and vocals) and Hamish Stuart (drums).