Fergie is "thrilled" about her engagement to 'Transformers' star Josh Duhamel.

The 'London Bridge' singer, who has been dating Josh for three years, showed off her impressive diamond engagement ring as she performed at Atlantic City's Borgata Hotel Casino and Spa on Saturday.

Fergie gushed: "I feel like the luckiest girl in the world. I'm thrilled!"

The Black Eyed Peas singer dedicated 'All That I Got' to Josh, and told thecrowd: "This song is about loving someone for their inner beauty. I hope you all have someone like that in your lives. I do."

Fergie refused to give away any information about the couple's wedding, but admitted it will be hard to keep her plans a secret.

She insisted: "I'm not giving any details. I think the fine points are sacred. It's just important to us. It's hard for me to stay quiet though because I have a big mouth!"

The 32-year-old singer also revealed she is planning to spend more time with her family and her pets in 2008.

She added to People magazine: "In 2008, I just want to have a balance. I've been touring for about four-and-a-half years straight. So for me, I love it when I get to go home now and see my dogs. It's important for me to see more of my family, see more of my sister, my mom and dad."

The couple announced their happy news on 12/26/07 but refused to reveal if 'Las Vegas' star Josh popped the question on Christmas Day.