OnlyOnAOL: Denis Leary gets fired up for charity

Denis Leary and Liz Gillies on "Sex&Drugs&Rock&Roll"
Denis Leary and Liz Gillies on "Sex&Drugs&Rock&Roll"

By: Donna Freydkin

He played a troubled firefighter on "Rescue Me."

Now, Denis Leary is getting fired up for charity, on International Firefighters' Day, using social media.

What this means: supporters can thank a firefighter or firehouse in their community by posting a photo and/or message using #IFFD and #BraveEveryDay tags. The messages and images will be aggregated at Plus, you can give money and for every dollar donated in May, up to $100,000, the makers of Guinness will give a matching dollar in support of firefighters.

The Leary Firefighters Foundation provides money and resources to fire departments to get firefighters the "best available equipment, technology and training necessary for the health and safety of firefighters and in turn, the public they serve."

Leary's FX series, "Sex&Drugs&Rock&Roll," returns for season two on June 30. He plays a hard-living music star.