Kourtney Kardashian and Travis Barker are expecting their first child.

The reality star, 44, surprised her rocker husband at a Blink 182 concert, holding up a sign that read: 'Travis, O'm Pregnant'.

Drummer Travis rushed off stage after seeing the sign to give her a big kiss.

The couple has been open about their desire to have a baby following their wedding in Italy last year.

Kourtney shared the touching video with her 222 million followers on Saturday morning, racking up 1.2 million likes in just an hour.

The baby will be the sixth child in the couple's blended family, with Kourney sharing four children with ex Scott Disick and Travis a dad of two with ex-wife Shanna Moakler.