From source:

ブルーハムハムがベビーギフトブランドのMARLMARLとコラボしました。
スタイ・ナップサック・マグボトルなど、この夏限定のコラボアイテムが発売中👾
詳細はこちら↓
https://www.marlmarl.com/feature/marlmarl-stadium/

🎧Usage Agreement：Nujabes
https://open.spotify.com/track/0pZpCtGuxZTlK8mPuQ1Oua
https://music.apple.com/jp/album/luv-sic-pt3-instrumentals/1361503700?i=1361503906

#BLUEHAMHAM

Note: MARLMARL is a Japanese children's clothes brand, hence the baby HamHam. This is also the first video to feature the baby HamHam after he was featured in a GIF on the artist's Twitter account.