Question: On the Strength is the 2nd and final album by which American hip hop group formed in the South Bronx in 1976?

Context articles: Grandmaster Flash and the Furious Five
Stypes
Disco Fever
B-Boy Records
On the Strength
Stetsasonic
Boogie Down Productions
McGruff (rapper)
South Bronx
Hip hop

Grandmaster Flash and the Furious Five were an American hip hop group formed in the South Bronx of New York City in 1976.
 Composed of one DJ (Grandmaster Flash) and five rappers (Melle Mel, The Kidd Creole, Keith Cowboy, Mr. Ness/Scorpio, and Rahiem), the group's use of turntablism, break-beat deejaying, and conscious lyricism were significant in the early development of hip hop music.
Stypes is an American Hip Hop Group formed late 2002 in Berwyn, Illinois, right outside of Chicago.
 Originally formed as a two-piece Hardcore Hip Hop duo, Adam Mason, "StereoAdam" and Aaron Curran, "StereoAaron" appeared on many stages in the Chicago underground scene.
 After doing shows with acts such as the Wu-Tang Clan, Crucial Conflict, and others, they achieved much local success with their 2006 song, "Berwyn".
 The group helped spearhead the "Save The Spindle Campaign" to prevent the destruction of Dustin Shuler's seven car work of art called, The Spindle, located in Berwyn's Cermak Plaza.
 Their attempt to rescue the sculpture was not enough yet their popularity continued to climb locally.
 The release of the song, "Tock", on the 2008 album, "Nobody's Story", by Incise helped the once local act to stretch their sound over the pacific to Japan.
 With the formation of a relationship with Kitchen Dip Recordings and the release of the album, "7 Stories High", in 2011 Stypes solidified their spot in the Chicago Hip Hop Scene.
Disco Fever was a New York City dance club located in the South Bronx that operated from 1976 to 1986.
 After initially failing to draw very many customers, Sal Abbatiello convinced his father, the owner, to hand over the reins.
 Abbatiello quickly began featuring hip hop artists including a young Grandmaster Flash, and the club greatly increased in popularity and fame.
 Hip hop group Run-D.M.C.
 performed their first show at the club.
B-Boy Records was an important independent hip hop record label formed by Jack Allen and William Kamarra in 1986, and situated at 132nd Street and Cypress Avenue in the Bronx, New York City.
 Its most notable signing was Boogie Down Productions, and it released Boogie Down Productions' first singles, "South Bronx" (1986) and "The Bridge is Over" (1987), and the group's landmark debut album, "Criminal Minded" (1987).
 Other acts that recorded for the label included JVC Force, Cold Crush Brothers, Levi 167 and Jewel T.
On the Strength is the second and final studio album by Grandmaster Flash and the Furious Five.
 Released in 1988, it was the full line-up’s last album together.
 Although certainly contributing to the album itself, Cowboy (Keith Wiggins), was not present for the album or single photo shoots.
Stetsasonic was an American hip hop group formed in 1981 in Brooklyn, New York City, New York.
 It is remembered as one of the first hip hop crews to use a live band, and the group's positive, uplifting lyrics made it forerunners of alternative hip hop and jazz hip hop.
Boogie Down Productions was a hip hop group, originally composed of KRS-One, D-Nice, and DJ Scott La Rock.
 DJ Scott La Rock was murdered on August 27, 1987, five months after the release of BDP's debut album, "Criminal Minded".
 The name of the group, Boogie Down, derives from a nickname for the South Bronx section of The Bronx, one of the five boroughs of New York City.
 The group pioneered the fusion of dancehall reggae and hip hop music and their debut LP "Criminal Minded" contained frank descriptions of life in the South Bronx during the late 1980s, thus setting the stage for what would eventually become gangsta rap.
Herbert Brown, better known by his stage name McGruff (also known as Herb McGruff) is an American Hip hop recording artist from Harlem, New York City, New York.
 Brown started rapping in his early teens.
 He embarked on his music career in the hip hop group Bronx Most Wanted, alongside rappers Jay Q and Tee U.B. Brown later became a member of the hip hop collective Children of the Corn.
 As a member of Children of the Corn, Brown worked alongside Big L, Cam'ron, Bloodshed and Mase, all of whom would go on to have successful careers in the music industry.
 After the group disbanded without releasing any material, Brown made his first appearance on Big L's debut album, "Lifestylez ov da Poor & Dangerous" (1995), on the tracks "8 Iz Enuff" and "Dangerzone".
 Eventually, Brown signed a deal with popular hip hop label, Uptown Records and began recording his debut album, "Destined to Be".
 In early 1998, the album's lead single "Before We Start" became a minor hit, charting on several "Billboard" charts.
 In the Summer of 1998, "Destined to Be" was released but failed to sell many copies, only peaking at 169 on the "Billboard" 200, and Brown was released from his contract.
 Brown would make appearances with Heavy D on his album, "Waterbed Hev" and the "Woo" soundtrack.
 In 2009, Brown appeared on Mase's mixtape "I Do the Impossible".
 In 2010, he was featured heavily on The Diplomats mixtape, "The D.I.P. Agenda."
 In 2014, DJ Kay Slay, enlisted Brown, along with Raekwon, Fat Joe, Ghostface Killah, Sheek Louch, N.O.R.E., Lil' Fame, Prodigy and Rell, for a song titled "90s Flow".
The South Bronx is an area of the New York City borough of the Bronx.
 As the name implies, the area comprises neighborhoods in the southern part of the Bronx, such as Concourse, Mott Haven, Melrose, and Port Morris.
 Formerly a deteriorating, poverty-stricken area, the South Bronx is now known for its hip hop culture and graffiti.
Hip hop or hip-hop is a subculture and art movement developed in South Bronx in New York City during the late 1970s.
 While people unfamiliar with hip hop culture often use the expression "hip hop" to refer exclusively to hip hop music (also called "rap"), Hip hop is characterized by nine distinct elements or expressive realms, of which hip hop music is only four elements (rapping, djaying, beatboxing and breaking).
 Afrika Bambaataa of the hip hop collective Zulu Nation outlined the pillars of hip hop culture, coining the terms: "rapping" (also called MCing or emceeing), a rhythmic vocal rhyming style (orality); DJing (and turntablism), which is making music with record players and DJ mixers (aural/sound and music creation); b-boying/b-girling/breakdancing (movement/dance); and graffiti art, which he called "aerosol writin'", although many say that the graffiti that hip hop adopted had been around years earlier, and had nothing to do with hip hop culture.
 (visual art).
 Other elements of hip hop subculture and arts movements beyond the main four are: hip hop culture and historical knowledge of the movement (intellectual/philosophical); beatboxing, a percussive vocal style; street entrepreneurship; hip hop language; and hip hop fashion and style, among others.