Kate Upton celebrated her 22nd birthday Monday night in Chicago at the River North tiki bar Three Dots and a Dash.
The Sports Illustrated Swimsuit model was spotted in a tight red dress and kicking back with six friends.
“She wasn’t in a bikini,” laughs a witness.
According to a source, a friend who couldn’t make the celebration sent Upton a bottle of Champagne for a midnight toast.
She was in the Windy City with her Detroit Tigers boyfriend Justin Verlander, whose game was postponed Tuesday.