The collection, which runs from ages 2-14 and will be available to buy in February, is inspired its adult-sized counterpart.
'Stripes are key,' notes H&M, while many pieces - including cute Henleys and grey marl track pants - are spun-off from Beckham's own love of vintage sportswear.
We can't wait to see Cruz busting some moves in it soon.
The announcement comes hot on the heels of another Beckham/H&M first: Becks' new Bodywear for H&M television ad will air during the Super Bowl with a 't-commerce' - that's click to buy - feature.
Just because, watch David talk through his Holiday 2013 Bodywear for H&M collection #yourewelcome...