Holly Brook Hafermann (born February 23, 1986) better known by her stage name Skylar Grey, is an five-time Grammy-nominated American multi-instrumentalist, singer, songwriter, and record producer. Grey was signed to Machine Shop Recordings under the name Holly Brook. She released her debut album as Holly Brook, Like Blood Like Honey, in 2006. She co-wrote the three versions of "Love the Way You Lie" (for Eminem and Rihanna) with Alex da Kid, who signed her to his Wonderland Music label. She was featured as a guest vocalist on Fort Minor's "Where'd You Go" and "Be Somebody", Diddy-Dirty Money's "Coming Home", Dr. Dre's "I Need a Doctor", Lupe Fiasco's "Words I Never Said" and Kaskade's "Room for Happiness".

Grey performed professionally as a child in a folk duo with her mother called Generations. Together, (with producer/engineer Randy Green) they independently produced three albums, Dream Maker, Lift Me, and Millennial Child/Waiting For You. Grey started her first band at the age of fifteen after 'sneaking' into bars, working with jazz musicians including Jeff Eckles, Tim Whalen and Leo Sidran in Madison, Wisconsin.

Kasseem Dean (born September 13, 1978), better known by his stage name, Swizz Beatz, is an American record producer, DJ, rapper and painter. At the age of 17, he gained attention in the hip-hop world through his friendship with rapper DMX. Grady Spivey and rapper Cassidy helped launch his label Full Surface Records. He is married to R&B superstar Alicia Keys and has one child with her, as well as three other children.

Dean did not see much of his father, a postal worker, due to his parents' separation in his early life. Dean is of Puerto Rican and African American decent.^{[citation needed]} He was raised by his mother in the South Bronx, where he spent most of his childhood. This was where he first encountered Hip hop and began deejaying. He began deejaying after he got some equipment from his stepfather and his uncles. He later relocated to Atlanta as a teenager due to having too many fights at Harry S. Truman High School; there he started to work for his uncles, Joaquin and Darrin Dean, who were co-CEOs of the Ruff Ryders label. Forgoing the practice of using samples, he mostly used the Korg Trinity and Triton Keyboards and tried to accentuate the performance aspect of his music.

William Leonard Roberts II (born January 28, 1976), better known by his stage name Rick Ross (often stylized as RICK RO$$), is an American rapper. He derived his stage name from the drug trafficker "Freeway" Ricky Ross, to whom he has no connection. Ross founded the record label Maybach Music Group, on which he released his studio albums Deeper Than Rap and Teflon Don, Ross was also the first artist signed to Diddy's management company Ciroc Entertainment. In early 2012, MTV named Ross as the Hottest MC In The Game.

William Leonard Roberts II was born in Coahoma County, Mississippi. and raised in Carol City, Florida, near Miami. After graduating from Carol City Senior High School, he later attended the historically black college Albany State University on a football scholarship.

After being signed to Suave House Records, former label for rap duo 8Ball & MJG, he eventually signed a deal with Slip-n-Slide Records, which has been under the Def Jam umbrella since 2006. While signed to Slip-n-Slide, Ross toured with fellow rapper Trick Daddy and made guest performances on other Slip-n-Slide albums.

Tremaine "Trey" Aldon Neverson (born November 28, 1984), better known by his stage name Trey Songz, is an American singer-songwriter, rapper, record producer and actor. His debut album, I Gotta Make It, was released in 2005, while his second album, Trey Day, was released in 2007. His third album, Ready, was released in 2009 while his fourth studio album, Passion, Pain & Pleasure, was released on September 14, 2010.

Songz was born Tremaine Aldon Neverson on November 28, 1984, in Petersburg, Virginia. Raised as a military brat, Songz did not have aspirations to have a musical career as a child due to his shyness, saying "Singing wasn't a reality for me, until other people started noticing I sounded good." He recognized his vocal abilities at the age of 14. Reluctant to sing, he began performing with encouragement by friends and family in high school. Record producer Troy Taylor discovered Songz during a talent show in 2000, which led him to signing a recording contract with Atlantic Records in 2002. After graduating from high school in 2002, Songz moved to New Jersey to begin recording his debut album, though recording didn't actually begin until 2003.