 When Grace and Owen make out on the couch , Grace is wearing a pair of Seven jeans . According to Betsy Taylor of the St. Louis Post @-@ Dispatch , this scene " prompted a ripple effect " in the United States of people seeking out the jeans label . At the chorus rehearsal , Jack and Owen are singing with the chorus when they begin bickering . Jack sings " Lyin ' and a @-@ cheatin ' ! " to Owen and Owen sings " tubby and a @-@ tone @-@ deaf " to Jack , a reference to Hal David and Burt Bacharach 's 1963 song " Wishin ' and Hopin ' " . 
