Complex sentence: The official music video for "Trouble Is a Friend" features Lenka making her way towards the screen; as the video progresses, Lenka's dresses as well as the backgrounds start to change in the verses.
Split into simpler sentences: The official music video for "Trouble Is a Friend" shows Lenka making her way towards the screen. As the video progresses, her dresses and the backgrounds start to change in the verses.