"I've Gotta Be Me" is a popular song that appeared in the Broadway musical Golden Rainbow, which starred Steve Lawrence and Eydie Gormé.
Lawrence released it as a single in 1967, and hit #6 on the Billboard Easy Listening chart the following year, with little or no support from traditional Top 40 radio.
Sammy Davis Jr. recorded the song in 1968 while the musical was still running on Broadway, altering the title slightly to "I've Gotta Be Me", and released it as a single late in the year.
Produced by Jimmy Bowen, Davis's cover peaked at #11 on the Billboard Hot 100 chart in early 1969 and remained in the Top 40 for 11 weeks.
Welsh pop singer Duffy performed it while riding a bicycle in European television advertisements for Diet Coke, beginning in February 2009.