Nicole Richie
Christopher Polk/ACMA2012/Getty Images

Lionel Richie welcomed stars like Tim McGraw, Martina McBride, and Marc Anthony to his ACM Presents: Lionel Richie and Friends in Concert at the MGM Hotel in Las Vegas last night, where daughter and Fashion Star mentor Nicole Richie took in the live performances from her front row seat. Click through the gallery to see more stars at last night’s hottest events.