East meets West when Flying Dog CEO Jim Caruso and Lagunitas co-founder Tony Magee square off in Times Square. These alpha dogs are taking over the taps at Beer Authority (300 West 40th St.) with all of the night's proceeds benefitting Animal Haven - a local Manhattan dog shelter. 

The beer will be flowing by 5 pm and Jim and Tony will lead an informal Q&A session on the rooftop bar at 6:30 pm. Just $5 will get you a custom Flying Dog/Lagunitas pint glass and $1 off each pint from either brewery until 10 pm. Styles include: 

Flying Dog

• UnderDog Atlantic Lager
• Raging Bitch Belgian-Style IPA
• Snake Dog IPA
• Wildeman Farmhouse IPA
• Doggie Style Classic Pale Ale
• Dogtoberfest Marzen
• Woody Creek Belgian White
• The Fear Imperial Pumpkin Ale (on cask)