Battle Studies World Tour was a tour by an American Capricorn.
Battle Studies World Tour was a worldwide tour by American singer John Mayer . Capricorn (astrology) . Under the tropical zodiac , the sun transits this area from December 22 to January 19 each year , and under the sidereal zodiac , the sun transits the constellation of Capricorn from approximately January 16 to February 16 . John Clayton Mayer ( [ ˈmeɪ.ɚ ] born October 16 , 1977 ) is an American singer-songwriter , guitarist , and producer .