Justin Bieber is feeling down and out, Down Under.
The Baby singer arrived in Brisbane, Australia on Tuesday, and looked to be in pain as he got off his plane.
The 17-year-old Canadian pop sensation tweeted: "Crazy 24 hours of travel... back is messed up... but we are smiling. We finally made it.
“AUSTRALIA we are here... back is in ALOT of pain... gonna rest up... back is killing me."
The teen heartthrob’s video for Baby is the most viewed-ever on YouTube, garnering more than 527 million hits.