Poor Justin Timberlake, a boo hoo hoo….as the singer has injured his leg on the set of his upcoming science-fiction thriller Now.

Apparently the accident happened while the singer turned actor was performing a stunt for the new movie, in which he co-stars with actress Amanda Seyfried.

A rep for Fox said: “Justin Timberlake sustained a muscle injury to his calf on the set of Andrew Niccol’s thriller ‘Now’.

“Production has taken a brief hiatus and will resume shortly.”

Bless. He won’t be doing any of this for a while then….