Louis Tomlinson is set to pay £2.1 million in child support. The One Direction star - who welcomed a baby boy with former lover Briana Jungwirth on Friday (22.01.16) - has reportedly agreed to pay nearly £10,000 a month for the upkeep of his son, who is thought to be named Sydney Rain. A source told The Sun newspaper: "Louis is doing everything he can to provide for mother and baby. He's very wealthy but is still being hugely generous in the amount he is giving ... He's taking being a dad very seriously." Over half of the £2.1 million spend will go on the £4,200 a month rent of a four-bedroom house in Calabasas, California, where Briana can live with the little boy. The other £5,750 will then be used for the likes of clothes, toys and nappies for the newborn. However, the child support agreement suggested by Louis is said to have not pleased Briana and her family. An insider revealed previously: "There's already a lot of talk about who is going to pay what. The family have slightly exaggerated expectations of what Louis should be contributing every month." The 24-year-old singer confirmed the news of the arrival of his baby boy, writing on Twitter: "I'm pleased to say my baby son was born yesterday :) He is healthy and pretty amazing :) I'm very happy!! (sic)"