100 on the day before Andy's 20th birthday, only to be surpassed by "Night Fever" at number-one there two weeks later. Andy then began work with the Gibb-Galuten-Richardson production team on his second album, Shadow Dancing, which was released in April 1978 and was his highest-charting album in America and Canada. The title track, written by all four Gibb brothers, was released as a single in the United States in April 1978. In mid-June it began a seven-week run at number-one, achieving platinum status and the honour of being Billboard's number-one song of 1978. In the United States, Gibb became the first male solo artist to have three consecutive number-one singles on the Billboard Hot 100, with all of the weeks at the top of the chart happening in less than year, from 30 July 1977 through 29 July 1978. Two further Top Ten singles, "An Everlasting Love" (which reached number 5) and "(Our Love) Don't Throw It All Away" (which reached number 9), were released from the album, which became another million seller. In 1979, Gibb performed along with the Bee Gees, ABBA and Olivia Newton-John (duet with "Rest Your Love on Me") at the Music for UNICEF Concert at the United Nations General Assembly, which was broadcast worldwide. He returned to the studio to begin recording sessions for his final full studio album After Dark. In March 1980, the last of Gibb's Top Ten singles charted just ahead of the album's release. "Desire" was recorded for the Bee Gees' 1979 album Spirits Having Flown and featured their original track, complete with Andy's original "guest vocal" track. A second single, "I Can't Help It", a duet with family friend and fellow British and Australian expat Olivia Newton-John, reached the top 20. Later in the year, Andy Gibb's Greatest Hits was released as a finale to his contract with RSO Records, with two new songs: "Time Is Time" (number 15 in January 1981) and "Me (Without You)" (Gibb's last top-40 chart entry) shipped as singles, before RSO founder Robert Stigwood let him go due to his cocaine addiction and behavioural problems. "After Dark" and "Will You Still Love Me Tomorrow" were non-single songs added to the album, the latter of which was a duet with P. P. Arnold, who had previously worked with Barry Gibb, including singing uncredited backups on "Bury Me Down by the River" from Cucumber Castle. Around