Class and sass.

• Tonight, 10pm-2am. Price: $0
  Watch breakdancers battle it out in teams of three at the Rotunda (Walnut b/n 40th & 41st) while DJ M-SKI lays downs the beats.
  
• Tonight, 9pm-2am. Price: $5 or $0 (see below)
  It's Ugly Thursdays at Coyote Ugly (3rd b/n Market & Chestnut), where you suck it up and hang out with the 18+ crowd (who are paying $10) so you can drink cheap ($1 drafts & $2 shots). To get in for free, email Mo or Mike to get your name on the not-so-exclusive list.
  
• Tonight, 5-7pm. Price: $0
  The John Breslin Jazz Band does a free set on the 36th Street Plaza (b/n Sansom & Walnut).
  
• Tonight, 7pm. Price: $0
  Watch Roman Polanski's famous psychological thriller, Rosemary's Baby at Penn's Graduate Student Center (3615 Locust Walk). No word on whether you need a graduate student ID to attend.
  
• Tonight, 11pm. Price: $0?
  It's drag night at Bob & Barbara's (1509 South Street). And I hear that every night there you can get a can of Pabst and a shot of Jim Beam for $3. Classy enough for you?