Have you ever been to a wedding and notice an unfamiliar person (or people) that nobody knows? Or just seems out of place? They’re generally referred to as “crashers.” While many might crash weddings just for the thrill, one recent wedding crasher provided a thrill of her own. Photo source: Taylor Swift Instagram Singer Taylor Swift surprised one New Jersey couple during their reception. The groom’s mother had been terminally ill, and Max Singer and Kenya Smith were legally wed…