Now he knows what it feels like to be a hungover college kid!

Justin Bieber was seriously struggling as he made his way thru LAX with his bodyguard yesterday, and at one point he even had to lean on his beefy security detail for support because walking without help was just too exhausting! While we think this is a little overdramatic and ridiculous, it's nothing compared to when The Biebs made his bodyguards carry him up the Great Wall of China!

JB spent the weekend cheering on good pal Floyd Mayweather in Vegas, but naturally the Canadian heartthrob also made time for the ladies! In fact, he posed for a poolside pic with a random bachelorette while partying at Marquee day club. The bachelorette looks like the type of chick JB would be interested in, so let's hope her fiancé didn't see the snapshot!