Allah Rakha Rahman (born 6 January 1966 as A. S. Dileep Kumar) is an Indian composer, singer-songwriter, music producer, musician, multi-instrumentalist and philanthropist. Described as the world's most prominent and prolific film composer by Time, his works are notable for integrating eastern classical music with electronic music sounds, world music genres and traditional orchestral arrangements. He has won two Academy Awards, two Grammy Awards, a BAFTA Award, a Golden Globe, four National Film Awards, fifteen Filmfare Awards, thirteen Filmfare Awards South in addition to numerous other awards and nominations. His extensive body of work for film and the stage earned him the nickname “the Mozart of Madras” and several Tamil commentators and fans have coined him the nickname Isai Puyal (English: Music Storm). In 2009, Time placed Rahman in its list of World's Most Influential People. The UK based World Music magazine Songlines named him one of 'Tomorrow's World Music Icons' in August 2011.

Peter Gene Hernandez (born October 8, 1985), better known by his stage name Bruno Mars, is an American singer-songwriter and record producer. Raised in Honolulu, Hawaii by a family of musicians, Mars began making music at a young age. He performed in various musical venues in his hometown throughout his childhood. He graduated from high school and then moved to Los Angeles, California to pursue a musical career. Mars produced songs for other artists, joining production team The Smeezingtons.

Mars had an unsuccessful stint with Motown Records, but then signed with Atlantic Records in 2009. He became recognized as a solo artist after lending his vocals and co-writing the hooks for the songs "Nothin' on You" by B.o.B, and "Billionaire" by Travie McCoy. He also co-wrote the hits "Right Round" by Flo Rida featuring Ke$ha, and "Wavin' Flag" by K'naan. In October 2010, he released his debut album, Doo-Wops & Hooligans. Anchored by the worldwide number-one singles "Just the Way You Are" and "Grenade", the album peaked at number three on the Billboard 200. Mars was nominated for seven Grammys at the 53rd Grammy Awards, winning Best Male Pop Vocal Performance for "Just the Way You Are".

Rob Cavallo is a record producer and A&R, most famous for signing and producing Green Day. He is currently Chairman of Warner Bros. Records.

Cavallo, born in Washington, D.C., moved to Los Angeles, California when he was about ten years old. As a teenager, he played in local bands, and after graduating from high school he began working as a recording engineer. Cavallo eventually graduated from the University of Southern California where he received a Bachelor of Arts degree in English Composition, Communications and Sociology in 1985. In the mid– to late 1980s, Cavallo worked with the so–called "hair metal" bands around Hollywood as a record producer. This continued into the 1990s, but when the "hair metal" scene died out, he began seeking out alternative rock bands to work with.

Cavallo currently lives in Hidden Hills, California with his wife Kim and children.

Cavallo was an in–house producer with the band Green Day. He has co–produced every album from their multi–platinum success Dookie to American Idiot. Cavallo has also produced four studio albums for the Goo Goo Dolls, 1998's Dizzy Up the Girl, 2002's Gutterflower, 2006's Let Love In, and 2010's, Something for the Rest of Us.

Nathaniel Thomas Wilson (born July 20, 1968), better known by his stage names Kool G Rap (or simply G Rap, and originally Kool Genius of Rap) is an American rapper, from the Corona neighborhood of Queens, New York City. He began his career in the mid-1980s as one half of the group Kool G Rap & DJ Polo and as a member of the Juice Crew. He is often cited as one of the most influential and skilled MCs of all time as he is a pioneer of mafioso rap/street/hardcore content and multisyllabic rhyming. On his album The Giancana Story, he stated that the "G" in his name stands for "Giancana" (after the mobster Sam Giancana), but on other occasions he's stated that it stands for "Genius".

He has also been cited as a major influence to some of hip-hop's most critically acclaimed figures such as Eminem, Nas, Jay-Z, Big Pun, RZA and more.

Wilson grew up in the poverty-ridden streets of Corona Queens, New York with legendary producer Eric B. In an interview with The Source he stated;

Growing up in Corona was like a little Harlem, it wasn't that hard for a nigga to be influenced by the street life type of mentality. I was like 15 years old, Ma dukes couldn't dress a nigga no more and at that age you want a little money in your pocket. That's what gets us all, material possessions. A nigga got caught up in that mentality. Nigga started selling drugs at a certain point, and all that shit, it's what was goin' on in the streets ... eventually all my friends got smoked. Everybody was droppin'. All my friends started packing burners everyday, we was wild shorties.