As the heartthrob's wife Jenna Dewan-Tatum nears the birth of their first child, it's Jude Law's ex, actress Sienna Miller that the couple have been calling for advice.
Ok, it's not as random as it sounds. Let us explain…
Channing and Jenna are currently living in London, where Chan's new movie is being filmed. Sienna and Channing hit it off when they were both filming in the USA and have kept in touch. Now that they're all in the UK, they're hanging out, or rather dialling out.
Sienna recently told Heat magazine, "It's an on-going phone conversation, he's actually in London so I've been helping him out a lot. We've got the same obstetrician, same everything."
Preparing for a London birth, Jenna and Channing have their pal Sienna "on-call," dispensing advice she said she is happy to provide.
Not long now! Jenna is ready to pop as she counts down the last month of her pregnancy.