In celebration of the chart's 55th Anniversary, we're counting down the 100 biggest Hot 100 hits ever.

80

"Abracadabra" - The Steve Miller Band

Hot 100 Peak: No. 1 for two weeks (1982)

As half of the Goldberg-Miller Blues Band, Steve Miller appeared on NBC's "Hullabaloo" in 1966, along with the Supremes. Years later, he was inspired by Diana Ross' "Upside Down" to write "Abracadabra."

79

"Gangsta's Paradise" - Coolio feat. L.V.

Hot 100 Peak: No. 1 for three weeks (1995)

Coolio and L.V. based their song for the film "Dangerous Minds" on Stevie Wonder's "Pastime Paradise" from his masterpiece, "Songs in the Key of Life." But when they sent it to Wonder, he rejected it. "I had a few vulgarities…and he wasn't with that," says Coolio. "So I changed it. Once he heard it, he thought it was incredible."

78

"Hot Stuff" - Donna Summer

Hot 100 Peak: No. 1 for three weeks (1979)

She was the reigning queen of disco, but Summer wanted to record a rock song. With Jeff "Skunk" Baxter on guitar, "Hot Stuff" was just the ticket. It was the first single from her double-LP "Bad Girls."

77

"You're Still the One" - Shania Twain

Hot 100 Peak: No. 2 (1998)

The sixth of her 18 Hot 100 entries and the first to rise higher than No. 25. Her highest-ranked single at No. 2 as well as her longest-running song, with 42 weeks on the chart.

76

"I Heard It Through the Grapevine" - Marvin Gaye

Hot 100 Peak: No. 1 for seven weeks (1968)

Gladys Knight and the Pips took the song to No. 2 in December 1967. Gaye's version hit No. 1 one year later, but was recorded before the Knight single. He wasn't the first Motown artist to record "Grapevine." Smokey Robinson and the Miracles cut it first, followed by the Isley Brothers.

75

"Dilemma" - Nelly feat. Kelly Rowland

Hot 100 Peak: No. 1 for 10 weeks (2002)

"Dilemma" replaced Nelly's "Hot in Herre" at No. 1, making him the fifth artist in Hot 100 history at the time to succeed himself in pole position, following the Beatles, Boyz II Men, Puff Daddy and Ja Rule.

74

"Just the Way You Are" - Bruno Mars

Hot 100 Peak: No. 1 for four weeks (2010)

Billboard's review of the single correctly predicted: "Mars has created a feel-good jam that should establish him as a solo contender in his own right." This song marked Mars' formal debut as a solo artist after charting as a featured guest on B.o.B's No. 1 hit, "Nothin' on You."

73

"Sugar, Sugar" - The Archies

Hot 100 Peak: No. 1 for four weeks (1969)

Don Kirshner, music supervisor of Filmation's Saturday morning animated "The Archies," asked Jeff Barry to produce songs for the show by a group of studio musicians fronted by vocalist Ron Dante with an assist from Toni Wine. Canadian singer Andy Kim was asked to co-write with Barry and the result was the third Archies single, "Sugar, Sugar," Billboard's No. 1 Hot 100 song of 1969.

72

"Upside Down" - Diana Ross

Hot 100 Peak: No. 1 for four weeks (1980)

When Ross heard the tracks produced by Bernard Edwards and Nile Rodgers, she felt like a guest vocalist on a Chic recording rather than the star of her own album. She insisted on a remix and the producers made slight changes and said if she still wasn't happy, she should remix the tracks herself. With Motown's Russ Terrana, she moved her vocals forward. "We had two different concepts of what her voice should sound like," Rodgers later explained.

71

"That's What Friends Are For" - Dionne and Friends

Hot 100 Peak: No. 1 for four weeks (1986)

Rod Stewart recorded the Burt Bacharach-Carole Bayer Sager song first, for the 1982 film "Night Shift." In 1985, Sager asked Bacharach to play the song for Dionne Warwick, who suggested she record it with Stevie Wonder. They then decided to add Gladys Knight and Clive Davis suggested Elton John as the fourth vocalist. The song raised over $3 million for the American Foundation for AIDS Research.

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