Justin Bieber Leaves London Sleep-Eyed

Justin Bieber quickly poses for a pic with a fan before heading off to Heathrow airport for his flight back to the states on Saturday morning (March 20).

The 16-year-old sleepy-eyed singer is off to Houston next, to perform at the Houston Rodeo with gal pal Selena Gomez TODAY, March 21th.

Justin tweeted from his flights, “Just landed in the US of A. 9 hours of sleep on the plane. Feeling nice. In route to Houston, the home of CHUCK NORRIS… CHUCK NORRIS doesn’t need Twitter…he is already following you.”

10+ pics inside of Justin Bieber…