The mating ritual of the young Chicago single is on nearly constant display at this Division Street equivalent of a Discovery Channel special on the topic. Twentysomethings writhe in their own perspiration and bounce off of each other like popcorn in an overheated kettle to a pulsating dance beat that doesn't die until the sun begins to peek over the horizon on the lake nearby.

The frenzied atmosphere, fueled in equal parts by alcohol, hormonal overload and desperation, virtually ensures that the wee small hours of the morning on Division will be nothing like the quiet, melancholy ambiance about which Frank Sinatra once crooned. Committed couples with no interest in straying and families with small children may want to stay away, along with anyone with a particular aversion to tattoos purchased on a parent's credit card and exposed female midriff. Relatively low cover charges and an abundance of available members of the opposite sex help to fill this massive space on weekends with ease.

And while we can't verify it, Mother's, opened in 1968, claims to have hosted The Velvet Underground on its stage. These days it sticks with live band karaoke.

Centerstage Reviewer: Mark Loehrke