Max Martin

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Martin Karl Sandberg (born February 26, 1971), known professionally as Max Martin, is a Swedish music producer and songwriter. He rose to prominence in the mid-1990s after making a string of major hits for artists such as the Backstreet Boys, Britney Spears and NSYNC. Some of his earlier hits include "I Want It That Way" (1999), "...Baby One More Time" (1999) and "It's My Life" (2000).

His trademark during the second half of the 1990s and the early 2000s was a danceable, keyboard-laden pop sound that blended music styles such as funk and Europop. However, with Kelly Clarkson's songs "Since U Been Gone" (2004) and "Behind These Hazel Eyes" (2005), Martin stepped back into the spotlight after reinventing himself with a heavier, rock-tinged sound.

Since 1999, Martin has written and co-written 21 Billboard Hot 100 number-one hits (most of which he has also produced or co-produced) in the United States, including Katy Perry's "I Kissed a Girl" (2008), Pink's "So What" (2008), Britney Spears's "Hold It Against Me" (2011), Maroon 5's "One More Night" (2012), Taylor Swift's "Shake It Off" (2014). Martin is the songwriter with the third-most number one singles on the chart, behind only Paul McCartney (32) and John Lennon (26).

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.

Savan Kotecha

Savan Harish Kotecha is an Grammy and Golden Globe nominated American songwriter and record producer of Gujarati Indian descent, from Austin, Texas. Kotecha has co-written such hits as Demi Lovato's "Cool for the Summer", "Confident", "Really Don't Care" and Ariana Grande's "Problem", "Break Free", "Love Me Harder", "One Last Time", and "Focus" among others. The recipient of 9 BMI Awards 9 ASCAP Awards and 2 Billboard Music Awards, Kotecha’s songs have achieved number-one status all over the world, having sold more than 200 million copies. Kotecha was seen on the American version of Simon Cowell's The X Factor as a vocal producer, a role reprised from the original UK show; Kotecha aided and developed the show's budding talent. He also was the vocal coach for X factor contestants who passed the first level.

Discography

Katy Perry

Katheryn Elizabeth "Katy" Hudson (born October 25, 1984), known professionally as Katy Perry, is an American singer, songwriter, and actress. After singing in church during her childhood, she pursued a career in gospel music as a teenager. Perry signed with Red Hill Records and released her debut studio album Katy Hudson in 2001, which was commercially unsuccessful. She moved to Los Angeles the following year to venture into secular music after Red Hill ceased operations. After being dropped by The Island Def Jam Music Group and Columbia Records, Perry signed a recording contract with Capitol Records in April 2007.

Perry rose to fame in 2008 with the release of the singles "I Kissed a Girl" – which sparked controversy for its homosexual themes – and "Hot n Cold" from her second album, a pop rock record titled One of the Boys. Her third album, Teenage Dream (2010), ventured into disco, and contained the U.S. Billboard Hot 100 chart-topping singles "California Gurls", "Teenage Dream", "Firework", "E.T.", and "Last Friday Night (T.G.I.F.)" as well as the number-three single "The One That Got Away". The album became the first by a female artist to produce five number-one Billboard Hot 100 songs, and the second overall after Michael Jackson's album Bad. In March 2012, she reissued the album as Teenage Dream: The Complete Confection, which produced the songs "Part of Me" and "Wide Awake".

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.