Ariana Grande

Ariana Grande-Butera (born June 26, 1993), known professionally as Ariana Grande (/ˌɑːriːˈɑːnə ˈɡrɑːndeɪ/), is an American singer and actress. She began her career in the Broadway musical 13, before landing the role of Cat Valentine on the Nickelodeon television series Victorious in 2009. After four seasons, the show ended, and Grande starred on the spinoff, Sam & Cat, which ended in 2014. She has also appeared in other theatre, television and film roles and lent her voice to animated television and films.

Grande's music career began with the soundtrack Music from Victorious (2011). She signed a recording contract with Republic Records and released her debut studio album Yours Truly in 2013, which debuted at number one on the US Billboard 200. The album's lead single, "The Way", reached the top-ten of the Billboard Hot 100, with critics comparing her wide vocal range to Mariah Carey's.

Grande's second studio album, My Everything (2014), also reached number one in the United States and charted well in various other countries. With the singles "Problem", "Break Free", "Bang Bang" and "Love Me Harder" from that album, she spent 34 continuous weeks in the top 10 of the Billboard Hot 100 and had the most top 10 singles of any artist in 2014. In 2015, Grande promoted My Everything with her first world tour, The Honeymoon Tour, and guest-starred in the Fox comedy-horror TV series Scream Queens. She also released the lead single "Focus" from her upcoming third album, released a holiday EP album, Christmas & Chill, and was heard on several collaborative projects.

Taylor Swift

Taylor Alison Swift (born December 13, 1989) is an American singer-songwriter. Raised in Wyomissing, Pennsylvania, she moved to Nashville, Tennessee, at the age of 14 to pursue a career in country music. She signed with the independent label Big Machine Records and became the youngest songwriter ever signed by the Sony/ATV Music publishing house. The release of Swift's eponymous debut album in 2006 marked the start of her career as a country music singer. Her third single, "Our Song", made her the youngest person to single-handedly write and perform a number-one song on the Hot Country Songs chart.

Swift's second album, Fearless, was released in 2008. Buoyed by the pop crossover success of the singles "Love Story" and "You Belong with Me", Fearless became the best-selling album of 2009 in the United States. The album won four Grammy Awards, making Swift the youngest ever Album of the Year winner. Swift's third and fourth albums, 2010's Speak Now and 2012's Red, both sold more than one million copies within the first week of their U.S release. Speak Now's "Mean" won two Grammy Awards, while Red's singles "We Are Never Ever Getting Back Together" and "I Knew You Were Trouble" were successful worldwide. Swift's fifth album, the pop-focused 1989, was released in 2014 and sold more copies in its opening week than any album in the previous 12 years, making Swift the first and only act to have three albums sell more than one million copies in the opening release week. Its singles "Shake It Off", "Blank Space", and "Bad Blood" reached number one on the Billboard Hot 100. The album would go on to win three awards at the 2016 Grammys including Album of the Year making Swift the first and thus far only female artist to receive the award twice.

David Guetta

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Pierre David Guetta (French pronunciation: ​[david geta]; born 7 November 1967) is a French DJ, record producer and remixer. He co-founded Gum Productions with Lisa Dodgson and released his first album, Just a Little More Love, in 2002. Later, he released Guetta Blaster (2004) and Pop Life (2007) featuring 2 tracks with the UK's Tara McDonald.

Guetta achieved mainstream success with his 2009 album One Love which included the hit singles "When Love Takes Over", "Gettin' Over You", and "Sexy Bitch", all three of which reached #1 in the United Kingdom, and "Memories". The 2011 follow-up album, Nothing but the Beat, continued this success, containing the hit singles "Where Them Girls At", "Little Bad Girl", "Without You", "Titanium" and "Turn Me On".

Guetta has sold over nine million albums and 30 million singles worldwide. In 2011 Guetta was voted as the #1 DJ in the 'DJ Mag Top 100 DJs' fan poll.

In 2013, Billboard crowned "When Love Takes Over" as the number one dance-pop collaboration of all time.