Question: What is the real of name of hip hop artist whos song was a sampling hook for Madonna's song Bye Bye Baby?

Context articles: Bye Bye Baby (Madonna song)
Goodbye Priscilla (Bye Bye Baby Blue)
CatCat
Bye Bye Baby (Mary Wells song)
Finland in the Eurovision Song Contest 1994
Billy Kinsley
Bye Bye Baby I Don't Want to Take a Chance
LL Cool J
Bye, Bye, Baby (Baby Goodbye)
Bye Bye Baby (CatCat song)

"Bye Bye Baby" is a song recorded by American singer and songwriter Madonna, for her fifth studio album "Erotica" (1992).
 It was released on November 15, 1993, as the sixth and final single from the album.
 "Bye Bye Baby" was written by Madonna, Shep Pettibone, and Anthony Shimkin and was produced by Madonna and Pettibone.
 The song is inspired by Madonna's emotions of that time and her S&M thoughts.
 Musically, it is a hip hop song, sampling a hook from LL Cool J's track "Jingling Baby", released in 1990.
 Madonna's vocals were filtered to make them appear as sound coming out from an antique radio.
 "Bye Bye Baby" features instrumentation from keyboard and lyrically finds Madonna asking questions to a lover she is about to abandon.
"Goodbye Priscilla (Bye Bye Baby Blue)" is a song written by Deanna Summers, David Saxton and Ben Shaw.
 It was published by Silicon Music, BMI in 1977 and first recorded by Gene Summers that same year.
 The song was initially released by Tear Drop Records as a one-sided, promotional, single and later re-issued with "World Of Illusion" as the flip side (#TD 3405).
CatCat is a Finnish duo that participated in the Eurovision Song Contest in 1994 with the song "Bye Bye Baby".
 They reached 22nd place with 11 points.
 Members of the duo are sisters Katja and Virpi whose original surname "Kätkä" is "Kätkät" in plural form which sounds exactly like CatCat, hence the name.
"Bye Bye Baby" is the first single by R&B singer Mary Wells, released in December 1960 on the Motown label.
 The song was one of Motown's earliest hit singles and showcased a much rougher vocal than the singer had during her later years.
Finland took part at the Eurovision Song Contest 1994, held in Dublin, Ireland, represented by sisters Virpi and Katja Kätkä as "CatCat" with the song "Bye Bye Baby".
William Ellis "Billy" Kinsley (born 28 November 1946, Anfield, Liverpool) is an English musician with The Merseybeats until 1966 (although he temporarily left the band both to form the Kinsleys) The group disbanded in January 1966 to resurface as a duo called The Merseys.
 They recorded The McCoys' song "Sorrow" (also covered by David Bowie on his 1973 cover album, "Pin Ups") with the band before embarking on a solo career, where he recorded "Bye Bye Baby".
 This song is not to be confused with a Four Seasons track of a similar title, but rather a typical Merseybeat tune.
 Followed by the singles: "Annabella", and "You Make My Day".
 Kinsley also undertook session work, which most notably included working for Apple Records (alongside George Harrison on at least one song for Jackie Lomax).
 He also worked on the popular "Top of the Pops" record series, which contained anonymous cover versions of recent and current hit singles.
 During this time he worked with fellow musician friend, Jimmy Campbell, and formed the band Rockin' Horse.
 They recorded one album and toured England and Europe as the backing band for Chuck Berry.
Bye Bye Baby I Don't Want to Take a Chance is the debut album by Motown recording artist Mary Wells, released on Motown in 1961.
 The album didn't chart but yielded two hit singles for the teenaged Wells including "Bye Bye Baby", which she issued in late 1960, and a song she had originally written as a demo for Jackie Wilson, and "I Don't Want to Take a Chance", a song written for her by Berry Gordy and Mickey Stevenson.
 Wells' follow-up album, "The One Who Really Loves You", was released in 1962.
James Todd Smith (born January 14, 1968), better known by his stage name LL Cool J (short for Ladies Love Cool James), is an American rapper, actor, author and entrepreneur from Queens, New York.
 He is known for such hip hop hits as "I Can't Live Without My Radio", "I'm Bad", "The Boomin' System", "Rock The Bells" and "Mama Said Knock You Out", as well as romantic ballads such as "Doin' It", "I Need Love", "Around the Way Girl" and "Hey Lover".
"Bye, Bye, Baby (Baby Goodbye)" is a popular song written by Bob Crewe and Bob Gaudio, a member of The Four Seasons whose version of the song made it to No. 12 on the US "Billboard" Hot 100 in 1965.
 On the original issue of the single, the title was "Bye Bye Baby"; on "The 4 Seasons Entertain You" album (and later issues of the song), the name was changed to the longer, more familiar name.
 The song is about saying goodbye, not because the person is unloved, but rather the relationship is adulterous ("there's a wedding ring on my finger").
"Bye Bye Baby" was the Finnish entry in the Eurovision Song Contest 1994, performed in Finnish (despite the English language title) by CatCat, a duo formed by two sisters, a blonde and a brunette, named Virpi and Katja Kätkä, whose family name is phonetically similar to "cat cat" in English (especially in plural: Kätkät).
 The song is sung from the perspective of a woman ending a relationship because of her lover's infidelity.
 She claims that "I won't cry when this ends" and seems generally positive about her future prospects.
 The Eurovision version of the song is almost entirely in Finnish, according to the Contest rules in force at that time, but the first line of the chorus (quoted in the song's title) is in English.