Mariah Carey (born March 27, 1969 or 1970) is an American singer, songwriter, actress, and record producer. Referred to as the "Songbird Supreme" by Guinness World Records, she is noted for her five-octave vocal range, melismatic singing style, and signature use of the whistle register.

She rose to fame in 1990 after signing to Columbia Records and releasing her eponymous debut album, which topped the U.S. Billboard 200 for eleven consecutive weeks. Soon after, Carey became the only artist ever to have their first five singles reach number one on the U.S. Billboard Hot 100 chart, from "Vision of Love" to "Emotions".

Edward Christopher Sheeran, MBE (born 17 February 1991) is an English singer-songwriter. In early 2011, Sheeran independently released the extended play, No. 5 Collaborations Project. After signing with Asylum Records, his debut album, + (pronounced "plus"), was released in September 2011. It topped the UK and Australian charts, reached number five in the US, and has since been certified eight-times platinum in the UK.

The album contains the single "The A Team", which earned him the Ivor Novello Award for Best Song Musically and Lyrically. In 2012, Sheeran won the Brit Awards for Best British Male Solo Artist and British Breakthrough Act. "The A Team" was nominated for Song of the Year at the 2013 Grammy Awards, where he performed the song with Elton John.