It turns out, she may be a little less like her fellow celebrities, too.
Instead of spending her 21st birthday Monday partying or jet-setting like most young, wealthy stars do, Upton paid a visit to her Uncle Fred.
That would be Rep. Fred Upton, Republican from Michigan.
Rep. Kevin McCarthy, R-Calif., the number three Republican in the House, snapped a photo with the Uptons and posted it to his Instagram account.
"With Congressman Fred Upton and his niece, Kate. We are celebrating Kate's .21st Birthday #kateupton," he wrote.
Celebrity Families of 2014 [PHOTOS]