Watch the Modern Family cast sing their goodbyes, weepy prom-date style
We’re still a month-and-a-half out from the two-part finale of ABC’s family sitcom juggernaut Modern Family, a bit of long-in-the-making event television that will presumably wrap up all the series’ most compulsive and addictive plot hooks. (Who did murder the Monsignor back in Season 2?) But it’s looking like at…