In the mid-1980s while rapping in small venues and after a record deal went sour, Hammer borrowed US$20,000 each from former Oakland A's players Mike Davis and Dwayne Murphy to start a record label business called Bust It Productions. He kept the company going by selling records from his basement and car. Bust It spawned Bustin' Records, the independent label of which Hammer was CEO. Together, the companies had more than 100 employees. Recording singles and selling them out of the trunk of his car, he marketed himself relentlessly. Coupled with his dance abilities, Hammer's style was unique at the time.  Now billing himself as "M.C. Hammer", he recorded his debut album, Feel My Power, which was produced between 1986 and 1987 and released independently in 1987 on his Oaktown Records label (Bustin'). It was produced by Felton Pilate (of Con Funk Shun), and sold over 60,000 copies and was being distributed by City Hall Records. In the spring of 1988, a 107.7 KSOL Radio DJ Tony Valera played the track "Let's Get It Started" in his mix-shows--a song in which he declared he was "second to none, from Doug E. Fresh, LL Cool J, or DJ Run"--after which the track began to gain popularity in clubs. (He would continue to call out other East Coast rappers in future projects as well.)  Hammer also released a single called "Ring 'Em", and largely on the strength of tireless street marketing by Hammer and his wife, plus continued radio mix-show play, it achieved considerable popularity at dance clubs in the San Francisco Bay Area. Heartened by his rising prospects, Hammer launched into seven-day-a-week rehearsals with the growing troupe of dancers, musicians, and backup vocalists he had hired. It was Hammer's stage show, and his infectious stage presence, that led to his big break in 1988 while performing in an Oakland club. There he impressed a record executive who "didn't know who he was, but knew he was somebody", according to the New Rolling Stone Encyclopedia of Rock & Roll.  M.C.Hammer had received several offers from major record labels before (which he initially declined due to his personal success), but after the successful release of this independent album and elaborate live dance show amazed the Capitol Records executive, Hammer agreed to sign a record deal soon after. Hammer took home a US$1,750,000 advance and a multi-album contract. It didn't take long for Capitol to recoup its investment.

Answer this question "What became of that?" by extracting the answer from the text above.
plus continued radio mix-show play, it achieved considerable popularity at dance clubs in the San Francisco Bay Area.