- In the 1930s, Alex Osborn, with BBDO, made them an ad campaign, in which was included the following slogan: "The season's best."
- The 1940s featured a magazine advertising campaign with actress Lizabeth Scott as the face, next to the slogan "RC tastes best, says Lizabeth Scott".
- In the 1960s, Royal Crown Cola did an ad campaign featuring two birds, made by Jim Henson
- Nancy Sinatra was featured in two Royal Crown Cola commercials in her one hour special called "Movin' with Nancy" featuring various singers in November 1967. She sang "it's a mad, mad, mad Cola... RC the one with the mad, mad taste!...RC! "
- Royal Crown was the official sponsor of New York Mets during the 1960s, 70s and 80s. A television commercial in the New York area featured Tom Seaver, New York Mets pitcher, and his wife, Nancy, dancing on top of a dugout at Shea Stadium and singing about RC Cola... "the mad, mad, mad, mad Cola! RC, the one with the mad, mad taste! RC, RC, RC, RC...." (Commercial fades out).
- In the mid 1970s, Royal Crown ran an advertising campaign called "Me & My RC", the most famous of which featured actress Sharon Stone delivering pizza on a skateboard. Others featured people in a variety of scenic outdoor locations. The jingle, sung by Louise Mandrell, went "Me and my RC! Me and my RC!..What's good enough for anyone else, ain't good enough for me."
- RC was introduced to Israel in 1995 with the slogan "RC: Just like in America!"
What happened? Now it's all that complicated shit, like "Drink Coke." I yearn for the simpler times, when doctors prescribed cigarettes, wars made sense, and no meant yes.