Selena Gomez tells us the stories behind her most talked about Instagram photos.

One Direction performs Steal My Girl live at the BBC Music Awards.

Shakira, singer and UNICEF Goodwill Ambassador, performs at the opening ceremony of the Sustainable Development Goals Summit at the General Assembly of the United Nations, 70th session.

Sigrid finishes telling us about pronouncing the letter "B." Here's part 1 in case you missed it.

Melrose is well known for the chic chicks cliché, but walking around these surprisingly friendly streets we found out that the spiritual way leads to less tips and that you can find almost everything that you want in Melrose except a famous skeleton. And how can you say no to “mother nature and lots of love”?

A video from TurnHere video productions about the vibrant alternative scene in the Queen West neighborhood of Toronto, Canada.

Katy Perry talks about a new tool on YouTube that fans can use to ask her direct questions. Ask Katy!

Pat Durbin of Planview® is the co-author of the book Taming Change with Portfolio Management. He explains the basic concept and talks about the advantages for businesses when putting it to use.

Michael Fishbach narrates his encounter with a humpback whale entangled in a fishing net. Gershon Cohen and he have founded The Great Whale Conservancy to protect whales. Join them in helping to save these magnificent creatures.

Susi Mai and her crew are taking us on a roadtrip through Ireland. Guinness, sheep and... kiteboarding!

What does the Holocaust have to do with us, anyway? In part one, Roderick Miller, the chair of the nonprofit organization Tracing the Past, gives a talk at TEDxVienna about the Holocaust and contemporary Europeans' perception of the space they live in.

NASA has announced the results of an epic physics experiment which confirms the reality of a space-time vortex around our planet.

American viola player Jasmine from the YouTube Symphony Orchestra was flown to Australia and partnered with singer songwriter Dewayne Everettsmith for a unique musical experiment. Their challenge: to collaborate and produce a piece of music influenced by their journey across Australia.

British pop group One Direction performs an acoustic rendition of their song "Night Changes." Enjoy!

Let's listen to "Broken Strings" by British musician James Morrison. The song is a duet with Canadian recording artist Nelly Furtado.