The song "Firework" from singer Katy Perry's third studio album sold over 7 million copies in the United States. The music video was filmed in Budapest and was nominated one of the top 50 videos of the year.

With the dazzling sparkle of Christmas around us, Katy Perry invites us to think of the important things that money can’t buy... such as love!

Do we live within bubbles of our own complacent conformity? Are we slaves to a hypnotic rhythm of life that prevents us from challenging ourselves and facing the issues of the world around us? American pop star Katy Perry and Jamaican reggae star Skip Marley ask questions and deliver a political message in a dancehall pop song.

Lily Allen joins English band Keane on stage for a charity concert at London’s Brixton Academy, singing a unique acoustic version of their hit “Everybody’s Changing."

Singers Kelly Clarkson, Trisha Yearwood, and Rebe McEntire give a dazzling performance of a classic song that takes us to the very heart of the Christmas story. The lyrics describe how Jesus was born one night in Bethlehem. The heavenly angels sang, and shepherds were first to hear the good news and witness the glorious sight.

Keri Hilson performs together with rap stars Kanye West and Ne-Yo in this melodic tune about two guys who thought they found the love of their life.

"Kids in America” was the debut single for British singer Kim Wilde. Catching the mood and the imagination, this pop masterpiece defines the style and attitude of the early 1980s.

Singer-songwriter Kitty Solaris dances in front of the graffiti-covered remains of the Berlin wall in the music video for “Kisses Lift Me Up.”

Singer-songwriter Kitty Solaris sings her new song “Get Used To It.” Enjoy!

From their sixteenth album "Emergency," released in 1984, here is American band Kool and the Gang with their hit "Fresh."

The Krayolas have been around for a long time, and their work, talent and dedication shows in La Conquistadora. We warn you: this song will be stuck in your head for several weeks.

"Help me make it through the night" is one of the greatest hits from legendary singer-songwriter Kris Kristofferson. Here, he performs it live as a duet with Lorrie Morgan.

Selena Gomez collaborated with Norwegian DJ Kygo on the hit single "It ain't me." The song features an eclectic mix of acoustic instruments and electro-house effects.

Enjoy this electro pop song which is the single from Kylie Minogue’s eleventh studio album Aphrodite.

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.