It was his bride-to-be Kim Kardashian’s 33rd birthday extravaganza on Friday night, taking place in one of the most exciting cities in the world – Las Vegas.

But it seems that all of the festivities over the last few days had finally caught up with Kanye West on Friday night.

The rapper, who proposed to the reality star earlier in the week on Monday night, appeared all tuckered out, and was snapped taking a little nap while standing up, as the couple and her famous clan hit TAO nightclub at the Venetian Hotel to celebrate Kim’s milestone.

With his arms crossed, Kanye had his head down and eyes shut while he appeared to be taking a little snooze.

The 36-year-old was no doubt exhausted, after planning his lavish proposal to the Keeping Up Kardashians star and also performing in his Yeezus world tour.

Earlier in the night on Friday, Kanye had taken to the stage at the MGM Grand Hotel & Casino before heading over the The Venetian to be by Kim’s side.

But one thing certainly did perk the Touch The Sky singer up, and that was the sight of his new fiancee’s figure clad a very low-cut white lace crop top and matching curve-enhancing pencil skirt.

At one point, Kanye was seen staring intensely at the mother-of-one’s eye-popping cleavage with his mouth agape as they walked around the casino floor.

Give us a cuddle: Kanye looked as if he was so sleepy, he need to rest his head on Kim’s chest in a darkened corner of the nightclub

Never one to do anything in halves, Kim went all-out for her 33rd birthday party and made the most of her eye-popping post-pregnancy figure.

The reality star was in Las Vegas four days after her actual birthday.

‘Let the bday festivities begin Vega$’ the Keeping Up With The Kardashians star tweeted to kick off the party, along with a photo of herself in her cleavage-enhancing white lace ensemble.

Read more: Daily Mail