Kym Johnson gathered her friends and headed to Las Vegas on Friday for a blow-out bachelorette party to celebrate her upcoming nuptials to fiancé Robert Herjavec. The party caught a performance of Jennifer Lopez?s headlining residency show ? and Kym even got a chance to meet Nicole Kidman. Finally, Johnson admits things may have gotten a ?little too wild? ? but not really. Johnson and Herjavec, a judge on the hit ABC show Shark Tank, got engaged in February after nearly a year of dating.