The singer, who married VS Angel Behati Prinsloo in July last year, has stated their intentions to start a family 'soon' in a joint interview with Christina Aguilera to promote the US version of The Voice.
'We're looking at the next year,' he said, when Aguilera - a mother of two - asked the question. 'We have some time. Next spring.'
It looked like he was getting in some early practice at playing the doting father at this year's Golden Globes Awards, with a picture of him touching Prinsloo's stomach setting the rumour mill turning - somewhat prematurely, it turns out.
If they do decide to take the plunge, it's fair to assume that Prinsloo will have plenty of peer support. Doutzen Kroes, Adriana Lima, Karolina Kurkova, Gisele, Lily Aldridge and Alessandra Ambrosio are just some of the Victoria's Secret girls past and present to have given birth in recent years - plus, BFF Coco Rocha announced she was expecting last year with what is possibly the coolest baby announcement ever.