Justin Guarini Does the guy in the new Diet Dr Pepper commercial look familiar to you? Early American Idol fans, rejoice – it's none other than Justin Guarini. The 36-year-old singer and Broadway actor stars in the soda ad as "Lil' Sweet."

Since 2015, Guarini has been starring as Lil' Sweet in Diet Dr Pepper television commercials, and web marketing.

David Naughton Because of the visibility he achieved through the “Be a Pepper” commercials, David Naughton became America's heartthrob. Peppers everywhere were eager to see more of him and their wish was granted when the horror film An American Werewolf in London was released in August of 1981.

Justin Guarini You may recognize him from his time singing on American Idol, from his role as 'Lil Sweet' on the Dr. Pepper commercials, or from your local grocery store aisles. That's because Justin Guarini, when he's not entertaining the world, lives right here in Bucks County with his wife and two sons.

The next company to market diet soda was Royal Crown Cola, who created Diet Rite in 1958. Next Dr. Pepper released a diet version of their beverage in 1962, and then the Coca-Cola joined the market in 1963 with Tab.

Originally made in Morrison's Old Corner Drug Store in Waco, Texas, the drink's unique flavor was a hit when it was first sold in 1885. Wade Morrison, the drug store owner, named it "Dr. Pepper" after Dr. Charles Pepper, a Virginia doctor who was the father of a girl Morrison was once in love with.

Dr Pepper Zero Sugar is sweetened with a combination of aspartame and acesulfame potassium, which makes it slightly more syrupy (read: realistic).

A The soft drink Dr Pepper was created by in 1885 by Charles Alderton. Alderton was a pharmacist at Morrison's Old Corner Drug Store in Waco, Texas and mixed the unique tasting drink after experimenting with many blends of fruit-based flavors.

Justin Guarini You may recognize him from his time singing on American Idol, from his role as 'Lil Sweet' on the Dr. Pepper commercials, or from your local grocery store aisles. That's because Justin Guarini, when he's not entertaining the world, lives right here in Bucks County with his wife and two sons.

Post their American Idol journey, the two also starred in a musical rom-com movie, From Justin to Kelly, in 2003. In WWHL, Kelly Clarkson confirmed that she and Justin Guarini have dated in the past. However, it was not during their time on American Idol season 1 when most fans thought the two were in a relationship.

Originally made in Morrison's Old Corner Drug Store in Waco, Texas, the drink's unique flavor was a hit when it was first sold in 1885. Wade Morrison, the drug store owner, named it "Dr. Pepper" after Dr. Charles Pepper, a Virginia doctor who was the father of a girl Morrison was once in love with.

A satisfying diet drink does exist! Diet Dr Pepper offers the same 23 flavors of regular Dr Pepper, without the calories. Try one today and enjoy the unbelievably satisfying taste.