PIC: Celine Dion Shows Off Her Twin Boys, 4 Months

Credit: Ethan Miller/Getty Images

Near, far, wherever they are!

On Wednesday, Celine Dion's baby twin boys Nelson and Eddy made their Sin City debut!

Back in Las Vegas to prep for an upcoming new Las Vegas show, the French-Canadian singer, 43, stepped out with husband Rene Angelil, older son Rene-Charles, 9, at Caesars Palace -- and their newest sons, born Oct. 13. See more photos of Celine and her twins.

Held by their mom and dad, both little guys wore matching baby blue gowns and white hats as their famous mom waved to fans. Dion and Angelil, 68, conceived Nelson and Eddy (named after civil rights icon Nelson Mandela and French songwriter Eddy Marnay) after five failed IVF attempts.

Last month, Dion admitted that the months following the happy birth were exhausting. "I take things day by day," the "My Heart Will Go On" singer told French magazine Gala. "I had moments of lifelessness...One moment, tremendous happiness; the next, fatigue sets in, and I cried for no reason, and then that took care of itself..It's for things like that after having a baby that mothers really need emotional support."