Bored with Philip's strict rules, Hattie sneaks out with Will to attend a Heavy D & the Boyz concert.
It is highly likely you are referring to (often typed as "1x18" or "118" in shorthand).
Will is dating a beautiful and wealthy young woman named Lisa (played by Nia Long, in her first appearance on the show). However, Will soon discovers that Lisa’s ex-boyfriend is none other than the charismatic and cocky musician Ice Tray (guest star Don Cheadle, in an early comedic role). A rivalry ensues, leading to a dance-off challenge at a club.
O episódio (118) é um dos primeiros grandes marcos da série, pois abandona um pouco o tom puramente cômico e abraça um drama característico que fez o programa ser tão amado.