Hollywood’s hottest stars are taking the ALS ice bucket challenge to help raise awareness and money for ALS research.

See Joe Manganiello Take the ALS Ice Bucket Challenge, and Sofia Vergara's Reaction!

This week, Mario Lopez agreed to be doused with cold water while the cameras rolled, and challenged Joe Manganiello to do the same. Watch the video!

Afterward, the “True Blood” star’s girlfriend, Sofia Vergara, told “Extra,” “He looks hot doing anything with water on top of him, with ice. I would look very cheesy like a wet t-shirt contest winner or something.”

So far, over $7 million has been raised in the ice bucket challenge.

For more information about the #IceBucketChallenge phenomenon that's spreading ALS Awareness across social media, visit ALSA.org.