Showing off her pearly whites for a good cause, Stacy Keibler was on hand for the Colgate A Wish for a Swish event on Tuesday (June 25) in New York City.

Rocking a cheery red Oscar de la Renta frock, the "Dancing with the Stars" alum joined the gathered crowd in an attempt to break a Guinness World Record for most people using mouthwash simultaneously.

In addition to the record attempt, Colgate introduced took the opportunity to introduce their new Colgate Total Advanced Pro-Shield mouthwash.

Sweetening the day even more, the mouth care manufacturer donated one dollar for every participant to the Make-A-Wish Foundation.