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Arthur's Theme (Best That You Can Do)" is a song performed and co-written by American singer-songwriter
Christopher Cross, which was the main theme for the
1981 film Arthur starring
Dudley Moore and
Liza Minnelli. In the US, it reached number one on the
Billboard Hot 100 and on the Hot Adult Contemporary charts during October 1981, remaining at the top on the Hot 100 for three consecutive weeks. Overseas, it also went to number one on the VG-lista chart in Norway, and was a top ten hit all around the world. The song became the second and last American number one hit by Christopher Cross. It was included as a bonus track only on the CD & Cassette versions of his second album
Another Page, released in 1983.