Avril Ramona Lavigne (pronunciation: / /; av-ril lə-veen; born 27 September 1984) is a Canadian singer-songwriter, fashion designer, actress, and philanthropist. She was born in Belleville, Ontario, but spent the majority of her youth in the small town of Napanee. By the age of 15, she had appeared on stage with Shania Twain; by 16, she had signed a two-album recording contract with Arista (now RCA Records) worth more than $2 million. In 2002, when she was 17 years old, Lavigne broke onto the music scene with her debut album Let Go.
Kesha Rose Sebert known by her stage name, Ke$ha, is an American singer/songwriter most famous for her debut single TiK ToK. She broke out onto the music scene with her debut album Animal which later reached the number 1 spot along with her debut single TiK ToK. Later the year TiK ToK rose to the number 1 spot, she acheived another number 1 with her lead single from her EP Cannibal, We R Who We R.
Justin Drew Bieber is a Canadian pop musician, actor, and singer-songwriter. Bieber was discovered in 2008 by American talent manager Scooter Braun, who came across Bieber's videos on YouTube and later became his manager.