VIDEO: Christina Aguilera and Demi Lovato Premiere Video For FALL IN LINE

Christina Aguilera made a huge entrance with her debut self-titled album. The set debuted at No. 1 on the Billboard 200 on its way to 8.3 million copies sold in the U.S., according to Nielsen Music. The album also spun off three No. 1 hits on the Billboard Hot 100 - "Genie in a Bottle," "What a Girl Wants" and "Come On Over (All I Want Is You)" - making the diva still the most recent female artist to launch three Hot 100 No. 1s from a debut album. Aguilera has since added two more Hot 100 leaders to her resume - the all-star remake of "Lady Marmalade," with Lil' Kim, Mya and Pink, in 2001, and, "Moves Like Jagger," a collaboration with Maroon 5, in 2011. In total, Aguilera has charted 12 Top 10 singles on the Hot 100 and eight Top 10 albums on the Billboard 200. She has also remained a constant force on pop radio, charting 14 Top 10 hits on the Pop Songs airplay chart. On May 3, the recent Billboard cover star dropped her latest release, the Ty Dolla $ign and 2 Chainz-assisted "Accelerate," which counts Kanye West among its co-producers. Her next studio album, "Liberation," will be released on June 15.

Actress and singer, Demi Lovato, has made a huge splash since she arrived on the Billboard charts in 2008 with her hit duet with Joe Jonas, "This Is Me." The "Camp Rock" single became her first of four career Top 10 hits on the Billboard Hot 100, including her highest-peaking single yet, "Sorry Not Sorry," which climbed to No. 6 in November 2017. She has also powered her way to six consecutive Top Five albums on the Billboard 200, including one No. 1, 2009's "Here We Go Again." Lovato has also proven to be a mighty contender on pop radio, with eight Top 10 hits on the Pop Songs airplay chart. In November 2017, she earned her first No. 1 on the chart in more than five years - "Sorry Not Sorry" completed her first trip to the top since "Give Your Heart a Break" in 2012.

Christina Aguilera is a Grammy Award-winning singer-songwriter renowned for her powerful voice and hit songs. She just announced her highly anticipated 6th studio album, Liberation, would be released on June 15. Throughout her career, she has sold more than 43 million records worldwide. Aguilera has achieved five No. 1 singles on the Billboard Hot 100 chart, and, with No. 1s in the 1990s, 2000s and 2010s, she is just the fourth female artist to top the chart in three consecutive decades. She has won six Grammys including one Latin Grammy Award. She has also received a star on the Hollywood Walk of Fame and holds the prestigious honor of being the only artist under the age of 30 included in Rolling Stone magazine's list of the 100 greatest singers of all time. In 2011 she entered the world of television as a coach on NBC's four-time Emmy Award-winning show "The Voice." Aguilera continues to use her voice for good. She has served as global spokesperson for Yum! Brands' World Hunger Relief effort since 2009 and has helped raise over $150 million for the World Food Program and other hunger relief agencies.

Demi Lovato is a Grammy-nominated and multi-platinum singer, songwriter, actress, advocate, philanthropist and business women. In addition, she's one of the biggest names on social media, with an engaged combined following of over 200 million. Lovato's highly anticipated fifth studio album, "Confident," was released in 2015. Within hours of the release of the first single, "Cool for the Summer," the anthem trended worldwide and hit No. 1 on iTunes in 37 countries. Her previous album, 2013's "Demi," hit No. 1 on iTunes in over 50 countries around the world, with the lead single "Heart Attack" earning Platinum status just 10 weeks after its release. "Heart Attack" was followed by the Top 5 radio smash and platinum single "Neon Lights," and her Top 10 single "Really Don't Care." The album supported two headlining tours ("Neon Lights" and "Demi World Tour"), which made stops throughout North America, Europe, Asia, Australia and New Zealand.

In April 2017, Lovato played the voice of Smurfette in the Sony animated film "Smurfs: The Lost Village." Additionally, beyond the stage and the screen, in 2013 her book "Staying Strong: 365 Days a Year," became a New York Times best-seller, and in 2014 she became a global ambassador for Sketchers. In 2015, Lovato partnered with Episode, a leading mobile storytelling network, to make "Demi Lovato: Path to Fame." Since launching, her story has been read over 225 million times. In 2017, Lovato took on a new venture and was announced as the first-ever collaboration with Fabletics, the innovative active wear brand co-founded by Kate Hudson.

As a result of her long-time commitment to raising awareness around LGBT issues and causes, in 2016 Lovato became the recipient of GLAAD's Vanguard Award. She continues to be a global advocate for mental health, and in 2017 was honored by Semel Institutefor Neuroscience and Human Behavior at UCLA with the Artistic Award for Courage for her work in mental health. In addition, also in 2017, she was named by Global Citizen as the organization's official ambassador for mental health, with a special focus on vulnerable communities around the world.

In July 2017, she released the first single "Sorry Not Sorry" off her album, which instantly flew into the Top 5 on the iTunes Charts and is now certified triple-platinum. The hit has garnered over 500 million streams, climbed to No.1 on the viral charts, and has over 310 million views for its house party video. Lovato's sixth studio album, "Tell Me You Love Me," is now certified platinum after debuting at No. 1 on iTunes in 37 countries on September29. In addition to her critically hailed album release, Lovato released a 78-minute documentary film, "Simply Complicated," which has amassed over 15 million views to date. Lovato just wrapped her 20-city tour across the U.S. and Canada with DJ Khaledand Kehlani, and is set to tour South America and Europe later this year.