Shaun White has won another gold medal, and it's all due to his ability to get huge air on the superpipe. John Brenkus of ESPN Sport Science explains how he pulls it off.

Physicists, philosophers, and UFO enthusiasts all have ideas on how many universes there may be or if there is extraterrestrial life. Chris Anderson summarizes the theories and expects that in the coming years physicists will arrive at more answers.

The title "Rockabye" is taken from the famous nursery-rhyme lullaby "Rock-a-bye baby on the tree top." The song is an electronic pop lullaby, and touches on the hardships of single mothers trying to bring up their babies right. It is sung by Anne-Marie in the role of the mother comforting her baby, and by Sean Paul who gives his support, singing in Jamaican English, so be on the lookout for unconventional grammar in the lines he sings.

Enjoy clips from ​the most popular musicals in London's world-famous West End. Les Misérables is the longest​-​running ​musical ​in this top ten group​, and of all time, in the West End.

Poet, activist, and scholar Jamaica Heolimeleikalani Osorio recites a poem about remembering her cultural roots by honoring her family and recalling their Hawaiian names. The last part of the poem is spoken in Hawaiian.

Bruno Mars talks about his musical background and his collaboration with Philip Lawrence. They started working together in Los Angeles and their collaboration has led to numerous recordings, concerts, and awards. Both artists are Grammy-winners. Music critic Sarah Rodman wrote that Bruno Mars has an “indefatigable ecstatic approach to performing.”

Egyptian athlete Omar El Ghazaly, a discus thrower and competitor in the Olympics, talks about his sport and his motivations.

In the first of a new TED-Ed series designed to catalyze curiosity, TED Curator Chris Anderson shares his boyhood obsession with quirky questions that seem to have no answers.

Barbadian singer Rihanna is one of the best-selling artists of all time. Here, she performs "Stay," an intimate, melancholy piano ballad from her seventh album Unapologetic. It also features Mikky Ekko on the vocals.

A look at the communications of Humpback Whales and other baleen whales, which includes how they sing, why they sing, and why we might consider their vocalizations actual songs.

In search of protein on the island, the boys set their sights on a wild boar. Captain Benson is in a very sorry state and unable to offer any leadership or comfort, no matter how much the boys might daydream.

Four teens find an old game console and decide to play a video game called “Jumanji.” Once they've chosen an avatar, they are transported to a jungle adventure and literally become their avatars. The only way to exit the game is by winning. Because Jumanji: Welcome to the Jungle is a sequel to the 90s movie classic Jumanji , it is also referred to as Jumanji 2.

Writer and star of the Broadway musical In the Heights, Lin-Manuel Miranda performs "The Hamilton Mixtape" at the White House Evening of Poetry, Music, and the Spoken Word. Accompanied by Alex Lacamoire.

The Pogues' alternative Christmas song is not about snowflakes, mistletoe or angels, but broken promises and ruined dreams, as well as time spent in the drunk tank. There have always been lots of policemen in New York City with Irish ancestry, hence the connection with the NYPD (New York Police Department).

Katie Melua lends her characteristic style to this gentle rendition of a well-known and loved Christmas song "O Holy Night". Melua accompanies herself on an acoustic guitar, and background vocals are provided by a choir.

The band Bastille performs their version of the popular Christmas carol "O Holy Night." They have modified and modernized the lyrics, especially in the second verse, to be more earthly, rather than heavenly, and more pessimistic than optimistic. Dan Smith is the lead vocalist of the UK band. His birthday is on July 14th, Bastille Day, hence the name of the band.

"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.

Harry Edward Styles is a young English singer, songwriter, and actor. He rose to stardom as a member of the boy band "One Direction." "Kiwi" is a particularly personal and explicit song, possibly about an ex-girlfriend, who might have been from New Zealand, since "Kiwi" is slang for "New Zealander."

Take a look at London's most popular attractions based on visitor numbers. From museums to family-friendly attractions and World Heritage Sites, London has something for everyone. The Parthenon marbles, the Crown Jewels, and the Cutty Sark clipper ship are among London's must sees. A great thing about London is that so many museums have free admission.

Katie Melua sings "Where Does the Ocean Go?" It is a single from Ketevan, her sixth studio album. In the video, as she sings, a painter-seaman paints the ocean. The song was inspired by Samuel Taylor Coleridge’s The Rime of the Ancient Mariner.

Here is a live performance of American singer songwriter Jack Johnson singing his hit song "Taylor". Enjoy!

Here's a concise and comical history of rugby, the game invented in 1823 and named after the Rugby School, a boarding school in Warkwickshire, England.

Esperanza Spalding, the first jazz musician to ever win a Grammy award, covers Lauryn Hill's song “Tell Him.” The song is loosely inspired by the famous Bible passage about "faith, hope, and love" from First Corinthians chapter 13.

Why, sung by Sabrina Carpenter in an "electropop" style, is all about contrasts. A conversation in a restaurant between Sabrina and her boyfriend sets the stage for a song about all their differences and how, for some mysterious reason, they still get along fine.