Caroline and Carolina are the feminine versions of the male Christian name Charles, which is from an Old German word meaning strong or manly. This passed into Latin as Carolus.
Some people might find it odd that a woman's name should be the feminine form of "manly".
The suggestion that it is anything to do with songs of joy is nonsense.
Caroline is derived from the name Cara, which means "song" in Latin. In a broader sense, Caroline can be associated with joy and happiness due to its musical origins.
Song of happiness
Jaylin can mean calm or song of joy.
A Song of Joy was created in 1969.
Sunrise - Caroline song - was created on 2006-10-10.
Joy - song - was created in 1992-02.
the song "Sweet Caroline" made for her
Joy to the world
Joy Down In My Heart
Hide - Joy Williams song - was created in 2005.
Your Joy Is My Low - song - was created on 2005-05-26.
Isolation - Joy Division song - was created in 1980.
Joy - Blackstreet song - was created on 1995-03-21.