09/10/2012 at 06:00 AM EDT
Gonna dress you up in ... my poncho?
braved a rainy New York City night to see Madonna
live in concert at Yankee Stadium.
The actress – who sat front row – took her seat around 10:20 p.m., just moments before the "Material Girl" took the stage. Beau Ashton Kutcher
was nowhere to be seen but Kunis spent her evening chatting with two male friends and happily posing for photos with fans.
"She wore a rain poncho just like the rest of the crowd," an onlooker tells PEOPLE.
, Leonardo DiCaprio
, Anderson Cooper
and Lucy Liu
were also in attendance.
– Kate Hogan and K.C. Baker