227 - Season 4 - Eps 18: The Class of '89
Mary tells the kids that she has the hookup to get Run DMC to play at their prom, but the problem is the kids cannot afford the $5000 fee. Dylan takes their money and invests it in a stock, which goes belly-up. They end up losing all of their money and cannot afford to have the prom in a hotel anymore. Instead, it is held outside 227, much to the kids' displeasure. Both Mary and Dylan go where Run DMC is and dress up as rappers to convince them to come. Dylan succeeds and Run DMC show up to rap at the prom.
About 227

Title: 227
First Air Date: 1985-09-14
Last Air Date: 1990-05-06
Status: Ended
Rating: 6.8/10 (from 39 votes)
Language: EN
Seasons: 5
Total Episodes: 116
Network: NBC
Genres: Comedy, Family
Production Companies: Columbia Pictures Television, Embassy Television, Embassy Communications, ELP Communications
Synopsis
A housewife sits on the stoop of her apartment building in a black neighborhood of Washington, D.C., and discusses all manner of things with her neighbors.
Cast

Marla Gibbs
Mary Jenkins

Hal Williams
Lester Jenkins

Alaina Reed Hall
Rose Lee Holloway

Jackée Harry
Sandra Clark

Regina King
Brenda Jenkins

Helen Martin
Pearl Shay

Curtis Baldwin
Calvin Dobbs

Barry Sobel
Dylan McMillan

Countess Vaughn
Alexandria DeWitt

Paul Winfield
Julian C. Barlow