The 23-year-old singer looked in high spirit when performing with his bandmates during their "On the Road" gig in Seattle, reported Ace Showbiz.
During the performance, Tomlinson didn't address the baby news. The singer seemed happier than usual, flashing wide smile at the audience as they screamed their affections for their idol.
He showed off his muscles and myriad of tattoos in a sleeveless black top paired with skinny black jeans and black sneakers with white soles. His hair was slicked back.