The Definition of Marriage

S8 E15: The big day has finally arrived - Grace (Debra Messing) and James (guest star Taye Diggs) are getting ready for their green card wedding. To Grace's dismay, Karen (Megan Mullally) takes it upon herself to ignore her wish for a low-key wedding ceremony and decides to arrange a huge affair instead including hiring Hall & Oates to perform "Maneater" at the ceremony. Eric McCormack and Sean Hayes also star.