QUOTE(Cyd at Outsports @ Dec 19 2007, 03:44 PM)

Where'd you get that? I've never seen a list that even has this in the top 10 for sales.
Singles sales since the early 90s can be a bit dubious. Various labels would reduce a single to 99 cents, which would dramatically increase sales, but that doesn't mean it's a great song.
Wikipedia has this list of songs that have been certified by the Recording Industry Association of America as selling over 4 million copies:
(in alphabetical order)
* "Another One Bites the Dust", Queen
* "Bad, Michael Jackson
* "Ballad of the Green Berets", Sgt Barry Sadler
* "Beat It", Michael Jackson
* "Billie Jean", Michael Jackson
* "Black or White, Michael Jackson
* "Candle In The Wind 1997/Something About The Way You Look Tonight", Elton John
* "The Chipmunk Song", The Chipmunks
* "(Everything I Do) I Do It for You", Bryan Adams
* "Eye of the Tiger", Survivor
* "Hey Jude", The Beatles
* "Hound Dog"/"Don't Be Cruel", Elvis Presley
* "I Just Can't Stop Loving You, Michael Jackson
* "I Want to Hold Your Hand", The Beatles
* "I Will Always Love You", Whitney Houston
* "I'll Be There", Jackson 5
* "Islands in the Stream", Kenny Rogers & Dolly Parton
* "I Think We're Alone Now", Tiffany
* "Let's Get It On", Marvin Gaye
* "Le Freak", Chic
* "Macarena", Los Del Rio
* "Scream/Childhood", Michael Jackson
* "Stayin' Alive", Bee Gees
* "Thriller", Michael Jackson
* "We are the world", Michael Jackson for USA for Africa
* "Whoomp! (There It Is)", Tag Team
There's a longer list of songs that are certified for sales over 2 million. "Believe" is on that list.
Notes on RIAA certification (also from Wikipedia):
* The RIAA only certifies a record if that record company pays for its official certification; some companies do not consider this an important distinction and will not request certifications unless pressed by its active, still saleable artists. A full and complete list of RIAA-certified recordings would be a very incomplete list of popular American music. (About this, I recall reading that Motown refused to have their hits officially certified for many years -- I think Berry Gordy didn't want anyone getting the true figures on their sales because that way he could avoid paying full royalties to his hitmakers.)
* The RIAA only certifies a particular recording of a song. For example, sales of Elton John's original "Candle in the Wind" single are not counted towards the 1997 version's official total.
* Retroactive RIAA certification only goes back to 1958; thus, a record like Bing Crosby's "White Christmas," released in 1942 and reported in 1963 as having sold 30 million copies, and currently listed by the Guinness Book of World Records at 50 million sales, would not be eligible. Bill Haley and His Comets' "Rock Around the Clock" is assumed to have sold more than 25 million copies since 1955. According to Billboard Magazine's statistician Joel Whitburn, other pre-1958 singles that would be affected by this cutoff point include Gene Autry's "Rudolph, the Red-Nosed Reindeer" (8 million sales reported); Crosby's "Silent Night" (7 million); Vernon Dalhart's "The Prisoner's Song" (7 million); the Mills Brothers' "Paper Doll" (6 million); Patti Page's "The Tennessee Waltz" (6 million); Gene Austin's "My Blue Heaven" (5 million); and Ben Selvin's "Dardanella" (5 million); and another 21 single releases in the 2-3 million range. (That is, assuming their respective record companies would elect to bear the optional expense of an official RIAA certification. It is unlikely, for example, that Sony BMG Music Entertainment, which absorbed RCA Records, which in turn had long ago purchased the Victor Talking Machine Company, now sees any particular advantage in precisely determining the sales for Selvin's 1920 smash hit on Victor Records.) The first officially RIAA-certified million-selling single was Perry Como's "Catch a Falling Star," in March 1958.
If you're still awake after all that...

clearly "Believe" was a massive, massive hit and should be higher on this list.