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

<P0-S0> Justin David Hawkins (born 17 March 1975) is an English musician and singer-songwriter, best known for being the lead singer and lead guitarist of The Darkness, alongside his brother, guitarist Dan Hawkins. <P0-S1>  Heavily influenced by classic hard rock and heavy metal 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. <P0-S2>  He was also the lead singer and guitarist for the band Hot Leg, formed in 2008, and now on hiatus. <P0-S3>  Since 2005 he is also active in his synthpop alter ego British Whale. <SEP> <P1-S0> "Hush Hush; Hush Hush" is a song by American female group The Pussycat Dolls from their second and final studio album, "Doll Domination" (2008). <P1-S1>  Written by Nicole Scherzinger, Andreas Romdhane, Josef Larossi, Ina Wroldsen, Dino Fekaris, Frederik Perren and produced by Quiz & LaRossi and Dave Audé for the remixed version, it was released as the album's sixth and final single on May 12, 2009. <P1-S2>  Lead and background vocals for both versions of the song are performed solely by lead singer Nicole Scherzinger. <P1-S3>  The release caused controversy as the single was credited as "Pussycat Dolls featuring Nicole Scherzinger" which caused tension within the group and rumored that Scherzinger would be going solo. <SEP> <P2-S0> Nicole Scherzinger ( ; born Nicole Prescovia Elikolani Valiente; June 29, 1978) is an American recording artist, actress and television personality born in Honolulu, Hawaii and raised in Louisville, Kentucky. <P2-S1>  She performed initially in high school plays, and studied at Wright State University before dropping out to pursue a musical career alongside the American rock band Days of the New and later auditioned for "Popstars", becoming a member of the short-lived girl group Eden's Crush. <P2-S2>  She rose to fame as the lead singer of the burlesque troupe-turned-recording act the Pussycat Dolls, who became one of the world's best-selling girl groups. <P2-S3>  During their hiatus, Scherzinger planned to embark on her solo career with "Her Name is Nicole", but it was later shelved after four singles failed to impact the charts significantly. <SEP> <P3-S0> "I Hate This Part" is a song by American girl group The Pussycat Dolls from their second album, "Doll Domination" (2008). <P3-S1>  The song was written by Wayne Hector, Lucas Secon, Jonas Jeberg and Mich Hansen and produced by the latter two along with Ron Fair and Nicole Scherzinger. <P3-S2>  It was first recorded for Nicole Scherzinger's planned solo project, "Her Name Is Nicole", but after its cancellation the song was given to the group. <P3-S3>  "I Hate This Part" was released on October 14, 2008 as the second international single and impacted contemporary hit radio stations on October 20, 2008 as the fourth single in the United States by Interscope Records. <P3-S4>  "I Hate this Part" is a dance/R&B-influenced pop song which ditches the Doll's usual sexual image in favor of introspection. <P3-S5>  Lyrically the song is about the conversation before a breakup.