Jesse McCartney joined the Jonas Brothers at Metlife Stadium in New Jersey on Sunday, Aug. 10. The night was extra special for McCartney because his wife Katie Peterson and 3-month-old son Archer were in the crowd cheering him on. The special occasion marked the newborn's first time attending a concert.
https://people.com/jesse-mccartney-s-3-month-son-archer-attends-his-fir…