For charity, that is. She's probably accomplished that in real life many times over.

The Hills star is among the celebrities who will be appearing on Who Wants to Be a Millionaire this month, as the once-popular prime time game show returns.

Lauren Conrad, Snoop Dogg, and Katy Perry may already be filthy rich, but that isn’t stopping them from coming on the ABC hit in a two-week special event.

Though most of the show’s guests take the cash home, the kind-hearted stars will give their loot to a charity of their choice. We just hope they last a round.

Do not even try to stump Lauren Conrad. [Photo: Fame Pictures]

Additional participants include actress Patricia Heaton, Olympic and Dancing with the Stars champ Shawn Johnson, daytime talk show Rachael Ray, singer Vanessa Williams, The View co-host and Cookie Monster hater Sherri Shepherd and others.

There's even a "surprise guest." Now who do you think that could be?

Possible question for LC: Which part of Heidi Montag is NOT fake?

1. Boobs
2. Hair
3. Lips
4. Nose
5. None of the above