Claim: Battle Studies World Tour was a tour by a singer from the United States.
Evidence: Battle Studies World Tour was a worldwide tour by American singer John Mayer.
John Clayton Mayer -LRB- -LSB- ˈmeɪ.ɚ -RSB- born October 16 , 1977 -RRB- is an American singer-songwriter , guitarist , and producer.
He was born in Bridgeport , Connecticut , and raised in nearby Fairfield.
Connecticut -LRB- -LSB- kəˈnɛtᵻkət -RSB- -RRB- is the southernmost state in the New England region of the northeastern United States.