has been referred to as the "voice of her generation" and a blue eyed soul singer. She possesses a four octave vocal range. Aguilera also topped COVE's list of the 100 Best Pop Vocalists with a score of 50/50 and came fifth in MTV's 22 Greatest Voices in Music.Her rendition of "It's A Man's Man's Man's World" at the 49th Grammy Awards ranked third in the Grammy's Greatest Moments List behind Celine Dion's performance of "My Heart Will Go On" and Green Day's performance of "American Idiot". In an interview, Dion described Aguilera as "probably the best vocalist in the world." Aguilera's distinct style of singing has been praised by critics and noted as influential. The People's Choice Awards will honor Aguilera with the People's Voice award, recognizing her vocals and "ability to reach millions of people across a number of genres including pop, soul and R&B". Rolling Stone ranked Aguilera at 58 as their 100 Greatest Singers of All Time, the youngest singer on the list.
Since her debut in 1999 Aguilera has been compared to Mariah Carey and Whitney Houston.