One Direction's Louis Tomlinson Strollin Solo With Baby Freddie

Louis Tomlinson turned heads while putting in quality time with his 2-month-old son because, let's face it, it's not everyday you see a One Direction member pushing around a stroller.

Louis pushed Freddie Thursday around the Calabasas Commons ... and made a stop at Barnes & Noble. Hopefully starting him off with the classics like "Goodnight Moon" or "Everyone Poops."

Naturally, we also recommend Sam Jackson's, "Go the F**k to Sleep."

Also ... warning to other boy banders: This could be you.

Use protection.