The track shot to the top of the U.S. countdown when it featured in cult 1980 movie Xanadu, and now it's set for another chart run thanks to Olivia's daughter Chloe Lattanzi, who wasn't even born when the song was a hit the first time around.

Mother and daughter both appear in the video for the reworked tune, which launched on Saturday (08Aug15), under the new title You Have to Believe.

Ironically, the song has a special connection to Chloe - her mum and dancer dad Matt Latanzi met while shooting Xanadu.

Lattanzi admits her mother was very protective of both her song and her daughter on the video set, stating, "She just made sure that I didn't dress like too much like a stripper."