"Wishing Well" is a song by Terence Trent D'Arby.
 The second single from the 1987 album "Introducing the Hardline According to Terence Trent D'Arby", the song reached number one on both the Soul Singles Chart and the "Billboard" Hot 100 on  7, 1988 (1988--) .
 "Wishing Well" was certified "Gold", indicating sales of 500,000, by the Recording Industry Association of America in October 1991.
 Written by D'Arby and Sean Oliver, D'Arby said "Wishing Well" was written "when I was in a half-asleep, half-awake state of mind", and that he "liked the feel of the words".
 Martyn Ware of Heaven 17 paired with D'Arby in production of the song, which was released on CBS Records.
 Once released, "Wishing Well", along with D'Arby's debut single "If You Let Me Stay", went into "heavy rotation" on MTV.
 D'Arby performed the song live at the 30th Annual Grammy Awards, where he lost the Grammy Award for Best New Artist to Jody Watley.
 When the single reached number one on the "Billboard" Hot 100, it had charted for 17 weeks, which made it the slowest song to reach number one since Eurythmics' "Sweet Dreams (Are Made of This)" in 1983.
"Panic Switch" is a song by the American alternative rock band Silversun Pickups.
 It was the first single released from the group's second album, "Swoon" (2009), on March 17, 2009.
 The song reached number one on the "Billboard" Alternative Songs chart, becoming their first number-one single on any Billboard chart.
 "Panic Switch" was the first song by an independent artist to reach number one on the chart in 11 years.
 After a one-week stay at number one, it spent 11 weeks at number two behind Linkin Park's "New Divide".
 It is also their first Hot 100 entry, peaking at number 92.
"Amazed" is a song written by Marv Green, Aimee Mayo, and Chris Lindsey.
 It was recorded by the American country music group Lonestar and was released in March 1999 as the second single from their third studio album "Lonely Grill" (1999).
 Lonestar's version is their longest-lasting number one single and biggest hit, spending eight weeks at the top of the "Billboard" country chart.
 A remix of the song made it reach number one on the "Billboard" Hot 100 and number 2 on the Hot Adult Contemporary Tracks charts in 2000.
 The song has sold over 1,650,000 digital copies in the US as of February 2016.
American actor/rapper Will Smith has released four studio albums, one compilation album, 17 singles (12 as lead artist and five as featured artist), one video album and 20 music videos (14 as lead artist, three as featured artist and three guest appearances).
 After working in the late 1980s and early 1990s with Jeff Townes as DJ Jazzy Jeff & The Fresh Prince, Smith began his solo career in 1997 with the release of "Men in Black", the theme song for the film of the same name, which topped singles charts in several regions across the world, including the UK.
 "Men in Black" (and second single "Just Cruisin'") was later included on Smith's debut solo album "Big Willie Style", which reached the top ten of the US "Billboard" 200 and was certified nine times platinum by the Recording Industry Association of America (RIAA).
 The third single from the album, "Gettin' Jiggy wit It", became Smith's first "Billboard" Hot 100 number one when it was released in 1998.
"Kiss an Angel Good Mornin'" is a song written by Ben Peters, and recorded by American country music artist Charley Pride.
 It was released in October 1971 as the first single from the album "Charley Pride Sings Heart Songs".
 The song has since become one of his signature tunes and was his eighth song to reach number one on the country charts.
 "Kiss an Angel Good Mornin" was also Charley Pride's first single to reach the pop charts, peaking at number twenty-one on the "Billboard" Hot 100, and also went into the Top Ten of the Adult Contemporary charts.
 It also reached #19 on the U.S. "Cash Box" Top 100.
 The song spent four months on the pop chart, longer than any of his other hits.
 "Billboard" ranked it as the No. 74 song for 1972.
"You Keep Me Hangin' On" is a 1966 song written and composed by Holland–Dozier–Holland.
 It first became a popular "Billboard" Hot 100 number one hit for the American Motown group The Supremes in late 1966.
 The rock band Vanilla Fudge covered the song a year later and had a top ten hit with their version.
 British pop singer Kim Wilde covered "You Keep Me Hangin' On" in 1986, bumping it back to number one on the "Billboard" Hot 100 in June 1987.
 The single reached number one by two different musical acts in America.
 In the first 32 years of the "Billboard" Hot 100 rock era, “You Keep Me Hangin' On” became one of only six songs to achieve this feat.
 In 1996, country music singer Reba McEntire's version reached number 2 on the US "Billboard" Hot Dance Club Play chart.
"Do It to It" is the lead single from girl group Cherish's album "Unappreciated".
 "Do It to It" features rap/hip hop artist Sean P from YoungBloodZ (not to be confused with Sean Paul, the reggae/dancehall artist, or Sean Price, the late rapper).
 The song peaked at number 12 on the "Billboard" Hot 100 in its fifteenth week of release.
 It also reached number 15 on the "Billboard" Hot Digital Songs chart and number 8 on the Hot 100 Airplay chart.
 It had strong video play on BET and reached number 2 on "106 & Park".
 The song played for the limit of 65 days on the countdown and was eventually retired.
 It was the only video to be retired that year that did not reach number one.
"Just My Imagination (Running Away with Me)" is a song by American soul group The Temptations.
 Released on the Gordy (Motown) label, and produced by Norman Whitfield, it features on the group's 1971 album, "Sky's the Limit".
 When released as a single, "Just My Imagination" became the third Temptations song to reach number one on the US "Billboard" Hot 100.
 The single held the number one position on the "Billboard" Pop Singles Chart for two weeks in 1971, from March 27 to April 10.
 "Just My Imagination" also held the number-one spot on the "Billboard" R&B Singles chart for three weeks, from February 27 to March 20 of that year.
"Gettin' Jiggy wit It" is a 1998 single by American actor and rapper Will Smith, released as the third cut from his debut solo album "Big Willie Style" (1997).
 The song is based around a sample of "He's the Greatest Dancer" by Sister Sledge.
 The chorus is sampled from "Sang and Dance" by The Bar-Kays.
 Released in January 1998, the song was Smith's second hit produced by "Poke & Tone" & Missy Elliott, who replaced his long-time partner Jazzy Jeff, though the record-scratching techniques of Jazzy Jeff can be heard in the song.
"If You Could Read My Mind" is a song by Canadian singer-songwriter Gordon Lightfoot.
 It reached number one on Canadian music charts and was his first recording to appear on the American music charts, reaching number 5 on the "Billboard" Hot 100 singles chart in February 1971.
 Later in the year it reached number 30 in the UK.
 The song also reached number one for one week on the "Billboard" Easy Listening chart, and was the first of four Lightfoot releases to reach number one.

Question: The song that became Will Smith's first "Billboard" Hot 100 to reach number one is based around a sample of what?
Answer: "He's the Greatest Dancer"