Trust us, you have to watch this colorful new video.
For a behind the scenes look at the making of "You Have to Believe," see the clip at the top of this post.
The video was filmed at Share Nightclub and the Neon Museum in Las Vegas, featuring a handful of Sin City's hottest performers and tribute artists. The video will be available on iTunes beginning on August 11, with the actual song to follow on August 21.
"You Have to Believe" marks the first music video collaboration for the mother-daughter duo, though Lattanzi and Newton-John have shared the stage and screen many times before. When she was eight years old, Lattanzi co-starred opposite her mother in Lifetime's A Christmas Romance. As a teen, Lattanzi showed off her musical talent on the road with her mom, singing original material and duets. Today, the 29-year-old is working on a solo EP.
Xanadu isn't Newton-John's only iconic film. First, there was Grease! Last year, ET quizzed her on the 1978 film that made her a star -- see how she did in the video below.