"T" is for "tricky." Depending on what letters "T" is combined with or next to, it is pronounced differently. Sigrid explains and gives some examples.

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.

The "Shape of You" singer, Ed Sheeran talks with Ellen DeGeneres on her show about the Grammys, his girlfriend and their cats, along with his upcoming work with Beyoncé. He also discusses a cycling accident which put him out of commission for a month.

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.

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.

Captain Benson can't be found and some boys think he may have swum out to sea in his delirium. They get closer to slaying a boar, and a helicopter on the horizon gives the boys a glimmer of hope.

"U" is an interesting vowel, and has a few different sounds. It can even sound like the consonant "Y," and combines with other vowels to make new sounds.

The Hooters, a Philadelphia rock band, has received a lot of attention in Europe, and particularly in Germany. The song and video raise awareness about the homeless who “sleep all night on a pillow of stone.”

Hope Levin, a pro kiteboarder from Turks and Caicos Islands, has some pointers on how to ride toeside into the wind. One key takeaway is that the rider should look upwind and avoid looking at the kite.

Sometimes all you need is a flashlight to find your way in the dark. That's how Jessie J feels about her boyfriend.

Julia and Rachael are young American women living in Berlin. Maggie, a friend of theirs from the United States, is coming for a visit. They are pretty excited about Maggie's arrival.

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.

Australians Kylie Minogue and Nick Cave of the band Nick Cave and the Bad Seeds sing a beautiful but macabre duet about a man who brought his sweetheart to a river and killed her. A 19th century Irish song entitled “Down in the Willow Garden” inspired Cave to write the song.

Ralph and Jack part ways over the fire that was supposed to burn at all times to alert passing aircraft of their presence. The boys divide into two camps.