Celine Dion called it a wrap at Caesars Palace, acknowledging in her final show that pregnancy and poor early reviews almost sank her titanic five-year engagement.

As adoring fans cheered, stood and clapped through Saturday night's performance in Las Vegas, Dion interspersed her usual numbers with emotion-filled monologues.

"At one point, it was like feeling like the Titanic was about to sink again," she said. "But we believed and we went on with it. Even though the vibe was not that positive for us."

After her last number, Dion invited husband Angelil and her son, Rene-Charles, now 7, on stage with her.