Raoul John Njeng-Njeng (born 1 April 1991), better known by his stage name Skales (an acronym for Seek Knowledge Acquire Large Entrepreneurial Skills), is a rapper, singer and songwriter. He relocated to Lagos and signed a record deal with Empire Mates Entertainment (E.M.E) in 2009.

A native of Edo State, Raoul John Njeng-Njeng ( his surname is not to be confused with Aespa's Ningning, a Chinese K-pop singer) was born and raised in Kaduna State. He grew up in a single-parent household with his mother, who did menial jobs to nurture him. Skales became interested in music while regularly attending his mother's cassette store. He met producers Jeremiah Gyang and Jesse Jagz while attending the University of Jos (Unijos). He took part in the Zain Tru Search Competition during his time at Unijos and won the competition's North Central region. Skales left Unijos his junior year and attended Lead City University, where he graduated with a degree in office management and technology. His debut single "Must Shine" was released to critical acclaim. In an interview with This Day newspaper in 2013, Skales described himself as an entertainer whose music is influenced by his surroundings. His 2009 release "Heading for a Grammy" was inspired by Kanye West's "Jesus Walks". The experiences he was going through at the time helped shape the scope of the song, which is an ode to self empowerment.

In 2000, he started writing rap songs in Kaduna, Nigeria. Between 2007 and 2008, he travelled to Jos to work with Jesse Jagz and Jeremiah Gyang. In 2008, he entered the Zain Tru Search competition and won the competition's North Central region. His debut single "Must Shine" received numerous spin on the Rhythm FM stations in Lagos, Jos and Abuja. Skales has collaborated with numerous artists, including Akon, ELDee, Tekno, Harmonize, Jeremiah Gyang, Banky W., and Knighthouse. His well-known songs include "Shake Body", "Mukulu", "Keresimesi", "Komole", "My Baby", "Take Care of Me" and "Denge Pose". After leaving E.M.E in May 2014, he set up the independent OHK Music record label. His debut studio album Man of the Year was released in 2015.

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