Major Fashion No-No
At The Tom Petty Show
6/4/2013 12:25 PM PDT BY TMZ STAFF
VIOLATED the "Jeremy Piven Guide to Rock Concerts" last night ... sporting a Tom Petty and the Heartbreakers
T-shirt to a Tom Petty and the Heartbreakers concert.
Congratulations Kirsten ... you're officially "That Guy."
Shoulda watched "PCU" before the show ...