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

<P0-S0> 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). <P0-S1>  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. <P0-S2>  "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). <P0-S3>  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. <SEP> <P1-S0> "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). <P1-S1>  The song is based around a sample of "He's the Greatest Dancer" by Sister Sledge. <P1-S2>  The chorus is sampled from "Sang and Dance" by The Bar-Kays. <P1-S3>  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. <SEP> <P2-S0> "Just My Imagination (Running Away with Me)" is a song by American soul group The Temptations. <P2-S1>  Released on the Gordy (Motown) label, and produced by Norman Whitfield, it features on the group's 1971 album, "Sky's the Limit". <P2-S2>  When released as a single, "Just My Imagination" became the third Temptations song to reach number one on the US "Billboard" Hot 100. <P2-S3>  The single held the number one position on the "Billboard" Pop Singles Chart for two weeks in 1971, from March 27 to April 10. <P2-S4>  "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. <SEP> <P3-S0> "You Keep Me Hangin' On" is a 1966 song written and composed by Holland–Dozier–Holland. <P3-S1>  It first became a popular "Billboard" Hot 100 number one hit for the American Motown group The Supremes in late 1966. <P3-S2>  The rock band Vanilla Fudge covered the song a year later and had a top ten hit with their version. <P3-S3>  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. <P3-S4>  The single reached number one by two different musical acts in America. <P3-S5>  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. <P3-S6>  In 1996, country music singer Reba McEntire's version reached number 2 on the US "Billboard" Hot Dance Club Play chart.