. . . "Mommy and Daddy's Room"@en . "\"Mommy and Daddy's Room\" is sung by Stewie and Brian when they form a children's band in \"The Boys in the Band\" while performing at a birthday party. Later, Olivia Fuller replaces Stewie after she connives her way into getting the pair to break up."@en . . . . . . . "\"Mommy and Daddy's Room\" is sung by Stewie and Brian when they form a children's band in \"The Boys in the Band\" while performing at a birthday party. Later, Olivia Fuller replaces Stewie after she connives her way into getting the pair to break up."@en . . . "Mommy and Daddy's Room"@en .