Safe Haven star Josh was pictured going for a leisurely ride around brentwood on his bicycle with the 17-month-old tot.
It looked like the perfect time to take in the sights of LA as the sun was beaming down on them.
Enjoying some quality father and son time, Josh was later seen going for a stroll with his little boy, and Axl took a particular liking to his daddy's baseball cap. So cute!
Axl, who will turn two in August, looked adorable in his dungarees as he clung onto his Josh's arms.
Josh and Black Eyed Peas star Fergie welcomed Axl, their first child, in August 2013.
Elsewhere, having taken a few years away from the music industry, Fergie has been working on her new solo album and released upbeat track 'L.A. Love (La La)' at the end of last year.
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Watch Fergie's music video for 'L.A. Love (La La)' below: