LOS ANGELES - Maroon 5 singer Adam Levine, 38, and his model wife Behati Prinsloo, 28, are expecting their second child.

In an Instagram post by Prinsloo (@behatiprinsloo) on Wednesday, the Victoria's Secret model showed off her growing baby bump while posing in a colourful bikini.

The photo was captioned: "Round 2..."

The couple, who married in 2014, have a one-year-old daughter named Dusty Rose.