L-O-V-E. That's right, Gleeks. It's Valentine's Day! And what better way to celebrate than to watch Glee's Valentine's Day episode. We've had some big episodes lately. First, the Michael Jackson tribute. Last week saw Ricky Martin come to McKinley High. And in this week's "Heart," we have three very special guest stars: Rachel's dads and The Glee Project Winner Samuel Larsen.