josh-duhamel-axl-counting-video

Sexy papa alert!

Battle Creek star Josh Duhamel shared a sweet video with son Axl, 20 months, via Facebook. The father-son duo had a quick lesson in numbers.

“1, 2, 3, 4, 5, 6, 7, 9, 8, 9, KUNG,” the proud papa, 42, captioned the clip. “Counting with dad.”

After their fun with numbers, Duhamel bust out into a rendition of Twinkle Twinkle Little Star.

On Monday, we spotted the pair lunching and biking in their Santa Monica neighborhood.

And last Friday, Josh and Axl stepped out with mama, Black Eyed Peas frontwoman Fergie, for a fun park playdate.

Josh has been busy filming the upcoming thriller, Beyond Deceit.

Meanwhile, Fergie is working on her second studio album, tentatively scheduled for a 2015 release. The first single off of that collection, L.A. LOVE (La La), was released back in Sept. 2014.

To see the cute father-son clip, click here.