Nicole Scherzinger
Nicole Scherzinger ( ; born Nicole Prescovia Elikolani Valiente; June 29, 1978) is an American singer, songwriter, dancer, actress, television personality and model. Born in Honolulu, Hawaii, and raised in Louisville, Kentucky, she initially performed in high school at Clark AB plays and studied at Wright State University before dropping out to pursue a musical career touring alongside American rock band Days of the New and through "Popstars", became part of the short-lived girl group Eden's Crush. Scherzinger rose to fame as the lead singer of the Pussycat Dolls and released the albums "PCD" (2005) and "Doll Domination" (2008) becoming one of the world's best-selling girl groups of all time.
Nicole Scherzinger
Following the group's breakup in 2010, Scherzinger successfully ventured into television winning the tenth season of "Dancing with the Stars" and becoming a judge on "The Sing-Off" and on both US and UK versions of "The X Factor". She released her debut solo album "Killer Love" (2011), which was certified gold by the British Phonographic Industry (BPI). The album spawned the UK number-one single "Don't Hold Your Breath", as well as the international top-ten hits "Poison" and "Right There". In 2014, Scherzinger released her second album "Big Fat Lie" and starred on the West End revival of the musical "Cats" for which she received a Laurence Olivier Award nomination for Best Actress in a Supporting Role. Since then, she shifted her focus back to television, winning "I Can Do That" (2015), co-hosting "Best Time Ever with Neil Patrick Harris" (2015), appearing as panelist on "Bring the Noise" (2015), and starring in the television film "Dirty Dancing" (2017). She is currently a judge on the Fox musical competition show "The Masked Singer".
Justin Hawkins
Justin David Hawkins (born 17 March 1975) is an English musician, singer and songwriter, best known for being the lead singer and lead guitarist of the Darkness. Heavily influenced by classic rock bands of the 1970s and 1980s (particularly Queen, Aerosmith, Def Leppard and AC/DC), Hawkins is noted for his falsetto singing voice and on-stage persona. He was also the lead singer and guitarist for the band Hot Leg, formed in 2008, and now on hiatus.
Justin Hawkins
Hawkins began playing clubs and pubs with the Darkness until they were signed by record label Atlantic Records. Their debut album, "Permission to Land", went straight to number two in the UK charts upon its release on 7 July 2003, before going to number one and staying there for four weeks, eventually going on to sell 1.5 million copies in the UK. 3.5m copies over all. The Darkness took inspiration for some of their work from the local north Suffolk area, including "Black Shuck" which mentions the nearby village of Blythburgh. The success of this album led to heavy touring for the band, including European portions of Metallica's Summer Sanitarium Tour 2003. They then went on to headline the Carling Festival in 2004. The band won three BRIT Awards in 2004 in response to the album, "Best Group", "Best Rock Group" and "Best Album". They also won two Kerrang! awards in 2004 for "Best Live Act" and "Best British Band". The third single from the album, "I Believe in a Thing Called Love", was a substantial hit in the UK as was their tilt at the Christmas 2003 number 1, "Christmas Time (Don't Let the Bells End)", which only just fell short, both singles reaching No.2 in 2003. The band also appeared in the video "Band Aid 20" with Justin singing a number of lines.

Question: Justin Hawkins and Nicole Scherzinger, have which mutual occupation?
Answer: singer