Justin Bieber had more fun this weekend than you did. The pop star took his private jet to Toronto for his father's engagement party, showed off his new 'do, bought a panther necklace from Cartier, and, as if that wasn't enough, he got to hang out with a real life tiger.

Oops. As glamorous as it all was, the Siegfried & Roy routine has landed Bieber in hot water with PETA, who issued a scathing letter in the wake of an Instagram photo that depicts him petting the giant cat.

"Justin Bieber is lucky not to have had his throat torn out by this stressed captive tiger," writes PETA Senior Vice President Lisa Lange. She also alleges that the cat in the photo is from the Bowmanville Zoo, which is currently embroiled in controversy after a video appearing to depict its owner whipping a tiger surfaced on YouTube.

"...PETA urges everyone to stay far away from cruel and dangerous big-cat photo ops and also why we're asking Justin to vow that this will be his last time promoting these types of abusive outfits, Lange continues."

There's been no comment from the Bieber camp regarding the matter yet. I guess we all know what song is playing on repeat right now, though.