Her beau, Joe Jonas, was also at the event, but they were not photographed together.
The two celebs were spotted enjoying each other's company on multiple occasions over the weekend, while Jonas continued his world tour in Florida.
Their festivities reportedly began with a trip to Disney World in Orlando.
The 23-year-old crooner attempted to go incognito with a baseball cap, but was still spotted by a fan while riding a roller coaster alongside Hudson.
After rocking the house at House of Blues in Orlando Saturday night, Jonas jetted to Miami, and it seems the 36-year-old actress joined.
Weeks later, the brothers finally confirmed that they'd broken up, and on October 31 issued their first joint statement."It is with heavy hearts that we confirm that our time...
Read Full Story(Getty)Things are not copacetic in the family Jonas.
Although it would be kind of amazing to make Nick and Kate Hollywood's newest celeb couple, another source tells us they're "just friends." (who could forget her strutting in a leotard and leg-warmers?! Additionally, the mother of two is a fan of the singer, and attended his Sept.
9 concert in New York City, along with Jennifer Lopez, Casper Smart, Gigi Hadid and Joe Jonas.
Should the latest rumored hookup be true, it's quite a doozy!