At the beginning of May 1978 ABBA went to USA for a big promotion trip. Even if the group had already lots of fans in USA they still weren't successful enough on the US charts with up-to-date only one #1 hit: "Dancing Queen". This trip was thought as the biggest promotional investment in 1978.
The highlight was a TV special with Olivia Newton-John and Andy Gibb. ABBA performed their greatest hits and sang together with Olivia and Andy. They had a jamming session and Frida sang opera. All the promotion made that ABBA's latest single "Take A Chance On Me" reached number 3 on the Billboard chart.
Oh that takes me right back to 1978 and all the hype to push the Abba brand in USA. Remember eagerly awaiting the Olivia show and loving it. Think they could only have conquered USA with extensive touring and that was never to be.