"Yes Sir, …" reached the top of the charts in Germany, the Netherlands, the UK, Sweden, Belgium, and Switzerland, and number three in France. Baccara sold more than 16 million copies of "Yes Sir, I Can Boogie" and featured in the 1977 edition of the "Guinness Book of Records" as the highest-selling female musical duo to date. They were the first female duo to reach number one in the UK, and had the only number one by a Spanish artist in the UK until Julio Iglesias, four years later.