Chris Isaak tells the story behind shooting the iconic 1989 music video for "Wicked Game," which featured supermodel Helena Christensen. The on-screen chemistry between the two of them has made many people wonder if they were romantically involved in real life, but Isaak says it was the combination of Christensen's excellent acting and the skill of photographer/director Herb Ritts that made the video come alive.

Chris Brown and Rihanna to Perform on “Today” Show Summer Concert Series. A video by PopTopic TV

Jimmy Carter interviews Chevy Chase as they talk together about his role as Clark Griswold in the National Lampoon's Vacation movies. Carter guesses that Chase has spent at least two years of his life playing Clark and that he must share some qualities with him.

Jimmy Carter interviews Chevy Chase, American comedian, actor and writer, revealing that he would love to be a successful jazz pianist.

Cheryl Cole is a British singer and a member of the Casting-Girlgroup Girls Aloud. Girls Aloud became one of the most successful pop bands in Great Britain and Ireland of the 2000s.

With help from Fuse School, learn the basics about global warming, particularly how burning fossil fuels adds extra carbon dioxide to the atmosphere, and how this then leads to climate change.

Fuse School: To better understand the science behind global warming, it is important to first understand how the Earth's atmosphere functions. This informative video shows the role of gravity and how the electromagnetic spectrum is involved.

Learn about the states of matter, solids, liquids and gases, how they're different and where they're found in everyday life.

Charlie has made a mistake and cheated on the one he loves. His girlfriend wants to know how long it’s been going on, and in the song Charlie attempts to explain that it happened only once and will never happen again.

American singer-songwriter Charlie Puth sings about a woman who used to be his girlfriend and continues to stalk him. Charlie doesn’t think she even loves him, but rather can't let go of the relationship.

Watch the famous speech delivered by Charlie Chaplin's character in the film The Great Dictator from 1940. "We think too much and feel too little. More than machinery we need humanity. More than cleverness we need kindness and gentleness."

Capt. Charles Moore of the Algalita Marine Research Foundation was the first to discover the Great Pacific Garbage Patch -- an endless floating mass of plastic trash and debris. In this first of two segments, he's drawing attention to the growing, choking problem of plastic debris in our seas.

Here's the second segment of Charles Moore's sobering report on the Great Pacific Garbage Patch. In it he draws dramatic attention to the potentially catastrophic problem posed by dumping plastic debris into our in-land waterways.

"What Christmas Means to Me" was written by Allen Story, Anna Gordy Gaye, and George Gordy. It has been recorded by many artists, and here is a very catchy version performed by Cee Lo Green on his album Cee Lo's Magic Moment.

New Zealand's prime minister Jacinda Ardern has declared the Easter Bunny and the Tooth Fairy essential workers. Here's a round-up of some feel-good news stories of how people are getting through the COVID-19 pandemic.