The document outlines the four major record labels in music sales in 2005: 1) Universal Music Group accounted for 25.5% of the market with labels like Geffen, Interscope, and Motown, and artists like Black Eyed Peas, Mariah Carey, and 50 Cent. 2) Sony BMG Music Entertainment accounted for 21.5% of the market with labels like Columbia, Epic, and Jive, and artists like Kelly Clarkson, Alicia Keys, and Shakira. 3) EMI Group accounted for 13.4% of the market with labels like Capitol, EMI, and Virgin, and artists like The Beatles, Coldplay, and Rolling Stones. 4) Warner Music