Episode 13 of "Will and Grace"
s01e13 The Unsinkable Mommy Adler
Title: The Unsinkable Mommy Adler
Original Air Date: 02/09/1999 on NBC
Plot Outline:
Grace's visiting mom, Bobbi Adler, a would-be star whose propensity for breaking out into show tunes and impressions dismays her daughter – and delights Will, Jack and Karen – wreaks havoc by suggesting Will and Grace wed, despite their sexual differences. When Will winces at the fantasy of committing to anyone who needs to be the star of a relationship, Grace realizes she's more of a chip off the old block than she imagined.