Siblings Riker, Rydel, Rocky and Ross Lynch, along with best friend Ratliff, had a big year. They released a 4-song EP, which included the hit single "Loud". On their debut album, "Louder", R5 worked with a team of A-listers, including producer-songwriters Emanuel "Eman" Kiriakou (Selena Gomez, Hot Chelle Rae) and Evan "Kidd" Bogart (Beyonce).

Named by Time Magazine as one of the most 100 most influential people in the world, Taylor Swift has won the hearts of millions of fans all over the world. Red, her latest album, released in 2012, features a slew of hits, including "We Are Never Ever Getting Back Together", "I Knew You Were Trouble", and "22".

Zendaya burst onto the scene when she landed the role of Rocky Blue on Shake It Up. She became the favorite of millions of fans worldwide, going on to star in her first film 2012's Frenemies, a Disney Channel Original Movie. Meanwhile, she's also appeared on Dancing With The Stars and released her first album, Zendaya, in 2013.

One Direction exploded onto the scene after first coming together on the UK's X Factor. With their debut album "Up All Night", the band became the first ever UK band to debut at number 1 on the US Billboard chart. Their second album, "Take Me Home", was released in 2012 and features the songs "Live While We're Young" and ""Little Things".

Selena's meteoric success began with her lead role in "The Wizards of Waverly Place" and as the front woman for Selena Gomez & the Scene. In 2013, Selena released her first solo album, 'Stars Dance", which included the hit singles "Come and Get It" and "Slow Down".

The multi-talented Demi has acted and performed in "Camp Rock" and "Sonny With a Chance". Her fourth studio album, Demi, was released in 2013 and features the singles "Heart Attack" and "Made in the USA".

Previously known mostly for her lead role on Victorious, Ariana is now climbing the music charts. She has amassed a huge following online, with The Huffington Post dubbing her as the "Third Most Influential Actress Online" above Miley Cyrus and Jennifer Aniston, and Billboard describing her as the "Most Influential Person to Watch Online".

Lucy Hale has captured the attention of millions as the star of ABC Family's smash hit series "Pretty Little Liars." Having conquered the small screen, Hale has recently completed her debut album with Hollywood Records. Recorded in Nashville and set for release in Spring 2014, the album has a country vibe reflective of Hale's hometown influences.