The stands at the Nashville Predators game Sunday looked more like a frat party -- at least for a few seconds -- 'cause cameras caught Taylor Lewan chugging beers like he was in college ... and it awesome!!
The Tennessee Titans star made an appearance at Game 4 of Nashville's playoff series with Carolina ... and it didn't take long for the guy to lose his mind pumping up the crowd.
When the 29-year-old was introduced on the jumbotron, he played it cool at first -- waving with his daughter in his arms .