Karenna Gore and Drew Schiff had been married for 12 years. Al and Tipper Gore's oldest daughter, 36, announced the split yesterday after sources say the couple had tried marriage counseling.

Is there something in the water at the Gore house?

After 40 years of marriage, Al and Tipper Gore split and now Karenna Gore has legally separated from her husband, which makes one wonder: What is going on this week? Heidi Montag and Spencer Pratt have legally separated -- that's three big celebrity splits in one week! It makes us wonder who's next?

A friend of Karenna Gore and Drew Schiff told People that the couple has been separated for a few months.

"It's amicable and they are in counseling. They are not divorced," the Gore family friend told People.

Karenna Gore has three children with Drew Schiff -- Wyatt, 10, Anna, 8, and Oscar, 3.

Meanwhile, Al Gore's spokeswoman told the press that, "Neither the Gores nor the Schiffs plan to comment."

The couple's wedding in 1997 was a splendid affair with the former Vice President giving away his oldest daughter. The fact that 12 years later, both Al and Tipper Gore and Karenna Gore and Drew Schiff have split is simply put: Sad!

Read on for more celebrity splits