The pop prince turned Hollywood star recently turned the grand old age of 27.
Kate Middleton and Prince William also made the same innocent mistake earlier this year.
Singer is the first solo male to grace the cover of American Vogue in 127 years.
The One Direction star has made his feelings known on Twitter.
It is the US model and One Direction star's first child together.
The former One Direction star and Oscar-winning actor had been tipped to be among the cast of Faster, Cheaper, Better.
Presenter Dan Walker has insisted there was nothing "gossipy" about the interview.
He also debuts his new song, "Watermelon Sugar" — and throws shade at Zayn Malik.
The Strip That Down singer said he and Louis "absolutely hated each other" when things were at their worst.
Felicite Tomlinson - sister of One Direction singer Louis Tomlinson - has died at the age of 18. The Instagram star and aspiring