Singer Celine Dion holds her son, Nelson Angelil, as she arrives at Caesars Palace in Las Vegas in 2011. The balding gent next to her is her husband and manager Rene Angelil, who holds their son Eddy Angelil, the twin of Nelson. And next to him is the couple's other son, Rene-Charles Angelil. (The twins were born in 2010, and Rene-Charles was born in 2001.) Dion and clan were arriving at Caesars Palace to begin rehearsals for her new show, which debuted there on March 15.